The 5 Best Thermal Underwear for Skiing in 2026 — Stay Warm and Dry on the Slopes

When selecting thermal underwear for skiing, the main challenge is balancing warmth, moisture-wicking, and comfort without adding bulk. The Amazon Essentials Men’s Thermal Waffle Knit Set stands out as the best overall for its consistent performance and affordability. For those prioritizing insulation, the HEROBIKER Fleece-Lined Set for Men offers superior warmth, while the SIMIYA Thermal Set for Women provides great fit and technical features for female skiers. Each option involves tradeoffs—more warmth often means added weight, while lightweight options sacrifice some insulation. Continue reading for a detailed breakdown of these choices and what fits your skiing needs.

Key Takeaways

• The best thermal underwear balances warmth, moisture management, and fit, with premium options offering the most insulation but often at a higher price.
• Fleece lining significantly enhances warmth but can add bulk, which may impact layering and mobility for some skiers.
• Multipack sets provide excellent value for casual skiers, while dedicated base layers focus more on performance and technical features.
• Fit and sizing are critical—products with stretch or tailored cuts will feel more comfortable during active skiing.
• Materials like merino wool and high-quality synthetic blends tend to outperform basic polyester blends in moisture-wicking and odor control.

Our Top Thermal Underwear For Skiing Picks

Amazon Essentials Men’s Thermal Waffle Knit Long Johns Underwear Set for Cold Weather, Multipacks		Best Overall for Budget-Friendly Comfort	Fabric type: 60% Cotton, 40% Polyester	Care instructions: Machine Wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown
SIMIYA Thermal Underwear Set for Women Long Johns with Fleece Lined Long Sleeves		Best for Warmth and Moisture-Wicking Comfort	Fabric composition: 95% Polyester, 5% Elastane	Care instructions: Machine wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown
HiZiTi Thermal Underwear for Women Long Johns Set Fleece Lined Warm Base Layer Long Sleeve for Weather Top Bottom Winter		Best for Active Winter Wear with High Comfort	Fabric composition: 10% Elasthan, 90% Polyester	Care instructions: Machine Wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown
WEERTI Thermal Underwear for Men Long Johns with Fleece Lined Base Layer		Best for Versatile Active and Casual Wear	Fabric composition: 92% polyester, 8% spandex	Care instructions: Machine wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown
JZCreater Men’s Thermal Underwear Set – Fleece Lined Base Layer for Cold Weather		Best for Extreme Cold and Versatile Outdoor Use	Fabric: 90% polyester, 10% spandex	Care instructions: Machine Wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown
Men’s Thermal Underwear Set with Lightweight Ultra Soft Fleece Lined, Long John Base Layer		Best for Active Warmth Without Bulk	Fabric: 92% Polyester, 8% Spandex	Care Instructions: Machine Wash and Hand Wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown
Men’s Thermal Underwear Long Johns Set – Winter Base Layer for Hunting, Sports, and Cold Weather		Best for Extreme Cold and Durability	Fabric: 90% Polyester, 10% Spandex	Weight: 220g/m²	Care Instructions: Hand or gentle machine wash in cold water, line dry	VIEW ON AMAZON	See Our Full Breakdown
HEROBIKER Long Johns Thermal Underwear for Men Skiing Winter Warm Hunting Gear Fleece Lined Base Layer Set Top Bottom		Best for Maximum Warmth and Flexibility	Fabric composition: 90% polyester, 10% spandex	Care instructions: Machine Wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown
WEERTI Women’s Thermal Long Johns with Fleece Lining – Cold Weather Base Layer		Best for Comfortable Warmth and Flexibility	Fabric: 92% Polyester, 8% Spandex	Lining: Fleece	Care Instructions: Machine Wash	VIEW ON AMAZON	See Our Full Breakdown
Amazon Essentials Men’s Thermal Waffle Knit Long Johns Underwear Set for Cold Weather, Multipacks		Best Budget-Friendly Multi-Pack	Fabric type: 60% Cotton, 40% Polyester	Care instructions: Machine Wash	Origin: Imported	VIEW ON AMAZON	See Our Full Breakdown

More Details on Our Top Picks

1. Amazon Essentials Men’s Thermal Waffle Knit Long Johns Underwear Set for Cold Weather, Multipacks

   

   Best Overall for Budget-Friendly Comfort

   View on Amazon

   This set stands out for its accessible price point and straightforward design, making it a reliable choice for everyday cold-weather wear. The slim fit and waffle knit fabric provide a snug, breathable layer that works well under ski gear or casual winter outfits. Compared with fleece-lined options like HiZiTi, it offers less insulation but relies on layering for extreme cold. Its lightweight cotton-polyester blend ensures all-day comfort without overheating, but it may fall short in frigid conditions without additional layers. The elastic waist and rib cuffs keep everything in place, which is ideal for active days on the slopes or around town. However, limited color options and moderate cold protection mean it’s best suited for mild to moderate winter days rather than extreme conditions.

   Pros:

   • Affordable price point for basic thermal needs
   • Breathable waffle knit fabric offers warmth without bulk
   • Snug fit with elastic waist and rib cuffs for all-day comfort

   Cons:

   • Limited color options reduce customization choices
   • May not provide sufficient warmth in extreme cold without extra layering

   Best for: Budget-conscious skiers who need versatile, lightweight thermal underwear for regular winter use.

   Not ideal for: Extreme cold conditions or high-performance athletes requiring maximum insulation and moisture management.

   • Fabric type:60% Cotton, 40% Polyester
   • Care instructions:Machine Wash
   • Origin:Imported
   • Bottom style:Long Johns
   Our verdict

   “This set works best for casual winter days and mild ski trips where budget and comfort are prioritized over maximum insulation.”

   → See it on Amazon →

2. SIMIYA Thermal Underwear Set for Women Long Johns with Fleece Lined Long Sleeves

   

   Best for Warmth and Moisture-Wicking Comfort

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   This fleece-lined set makes a strong case for those seeking cozy insulation combined with moisture-wicking performance. Its 95% polyester and 5% elastane fabric is soft, stretchy, and designed to keep women warm during active winter pursuits. Compared with the fleece-lined HiZiTi, SIMIYA’s fabric is slightly lighter but still offers excellent insulation, making it ideal for varying winter conditions. The high stretchability ensures freedom of movement, and moisture-wicking properties keep sweat at bay, which is beneficial on active ski days. However, it’s best suited for colder climates because its lightweight design may be too warm for mild winter days. Additionally, the need for careful washing—preferably hand wash or laundry bag—adds a minor inconvenience.

   Pros:

   • Fleece lining provides excellent insulation and comfort
   • High stretch fabric ensures natural movement and fit
   • Moisture-wicking and anti-static features suitable for active use

   Cons:

   • Requires gentle washing methods to preserve fabric quality
   • Might be too warm for mild winter days

   Best for: Women who want a warm, moisture-wicking thermal layer for outdoor skiing or winter sports in cold environments.

   Not ideal for: Mild winter climates or users seeking low-maintenance, machine-washable options without special care instructions.

   • Fabric composition:95% Polyester, 5% Elastane
   • Care instructions:Machine wash
   • Origin:Imported
   • Features:Fleece lined, moisture-wicking, 4-way stretch, anti-static
   Our verdict

   “This set offers cozy warmth and flexibility, making it well-suited for cold winter skiing and outdoor activities for women who prioritize insulation.”

   → See it on Amazon →

3. HiZiTi Thermal Underwear for Women Long Johns Set Fleece Lined Warm Base Layer Long Sleeve for Weather Top Bottom Winter

   

   Best for Active Winter Wear with High Comfort

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   This fleece-lined set emphasizes durability and active comfort, making it a practical choice for women who engage in outdoor winter sports or prolonged outdoor activities. Its 90% polyester and 10% elastane blend offers high stretch and breathability, with a thick fleece lining delivering substantial warmth. Compared with the thinner SIMIYA set, HiZiTi’s extra insulation is better suited for extreme cold or prolonged outdoor exposure. Its anti-pilling technology enhances durability, ensuring it maintains a smooth appearance over time. The main tradeoff is potential bulkiness—some users might find it less sleek under tighter ski gear—and it might be overly warm for mild winter days. Still, it excels in providing all-day coziness in demanding conditions.

   Pros:

   • Provides excellent warmth with thick fleece lining
   • High stretch fabric ensures comfortable fit and active mobility
   • Durable, anti-pilling fabric maintains appearance over time

   Cons:

   • Can be bulky under tight ski gear
   • Too warm for mild winter conditions

   Best for: Women seeking a high-insulation base layer for skiing, snowboarding, or winter hiking in very cold environments.

   Not ideal for: Indoor use or mild winter days where lighter layers would suffice, due to its thick fleece lining.

   • Fabric composition:10% Elasthan, 90% Polyester
   • Care instructions:Machine Wash
   • Origin:Imported
   • Features:Fleece-lined, Thickened, High Stretch, Breathable, Anti-Pilling
   Our verdict

   “This set is ideal for coldest days outdoors where maximum insulation and durability matter most.”

   → See it on Amazon →

4. WEERTI Thermal Underwear for Men Long Johns with Fleece Lined Base Layer

   

   Best for Versatile Active and Casual Wear

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   This men’s set combines fleece warmth with excellent mobility, making it a flexible choice for both skiing and lounging. Its 92% polyester and 8% spandex fabric offers a comfortable stretch, while the fleece lining delivers consistent warmth. Compared with the JZCreater set, WEERTI’s slightly higher polyester content provides better breathability and moisture management, suitable for active days. The four-way stretch and odor control enhance comfort during prolonged wear. However, a common issue is that sizing needs careful attention—going too tight can cause overheating or discomfort. The fleece lining, while warm, may feel too insulating in milder conditions, limiting its all-season versatility.

   Pros:

   • Effective fleece lining provides cozy warmth
   • Flexible fit with four-way stretch for moving freely
   • Breathable and odor-controlling for all-day comfort

   Cons:

   • Size selection is critical to avoid overheating or tightness
   • Fleece lining may be too warm in milder weather

   Best for: Men who want a reliable, multi-purpose thermal layer for skiing, outdoor activities, or casual winter wear that balances warmth with mobility.

   Not ideal for: Those in milder climates or seeking extremely lightweight, low-profile layers for high-intensity sports.

   • Fabric composition:92% polyester, 8% spandex
   • Care instructions:Machine wash
   • Origin:Imported
   • Features:Fleece lining, four-way stretch, moisture-wicking, odor control
   Our verdict

   “This set offers versatile warmth and mobility, making it a practical choice for active winter days involving skiing or outdoor pursuits.”

   → See it on Amazon →

5. JZCreater Men’s Thermal Underwear Set – Fleece Lined Base Layer for Cold Weather

   

   Best for Extreme Cold and Versatile Outdoor Use

   View on Amazon

   This fleece-lined set prioritizes insulation for seriously cold days, making it a strong choice for winter outdoor enthusiasts. Its 90% polyester and 10% spandex fabric offers excellent stretch and durability, with a moisture-wicking design that helps keep skin dry. Compared with WEERTI, JZCreater’s slightly greater spandex content provides more flexibility, which is beneficial for demanding outdoor activities like skiing or snowboarding. The focus on insulation and breathability makes it suitable for extreme cold, but the limited color options and the need for careful washing to maintain fabric quality are minor inconveniences. It’s less ideal for mild winter days where lighter, less insulating layers would be more comfortable.

   Pros:

   • Excellent insulation for extreme cold conditions
   • Moisture-wicking and breathable to keep skin dry
   • Flexible, stretchy fabric for unrestricted movement

   Cons:

   • Limited color options reduce style choices
   • Requires careful washing to preserve fabric quality

   Best for: Men venturing into very cold environments who need maximum warmth combined with flexibility for outdoor sports.

   Not ideal for: Indoor use or casual wear in moderate winter weather, where lighter layers are preferable.

   • Fabric:90% polyester, 10% spandex
   • Care instructions:Machine Wash
   • Origin:Imported
   Our verdict

   “This fleece-lined set is best suited for coldest days outdoors where maximum warmth and mobility are necessary.”

   → See it on Amazon →

6. Men’s Thermal Underwear Set with Lightweight Ultra Soft Fleece Lined, Long John Base Layer

   

   Best for Active Warmth Without Bulk

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   This set stands out for combining a lightweight, ultra-soft fleece lining with a stretchy, moisture-wicking fabric, making it ideal for skiers who want warmth without added bulk. Compared to heavier options like the HEROBIKER set, it offers more mobility and breathability, but may fall short in extremely cold conditions where thicker layers are necessary. Its snug fit and flat seams enhance comfort under ski gear, yet the limited color options might not appeal to all. This pick makes the most sense for skiers who prioritize active movement and layering versatility in moderate winter conditions.

   Pros:

   • Warm and snug fit with upgraded fabric for better stretch and durability
   • Lightweight, breathable, and moisture-wicking for outdoor activities
   • Tagless design and flat seams for comfort and reduced skin friction

   Cons:

   • May not be suitable for extremely cold conditions without additional layers
   • Limited color options

   Best for: Active skiers who need a snug, breathable base layer for variable winter days

   Not ideal for: Those facing extreme cold or long, unprotected exposure without additional insulation

   • Fabric:92% Polyester, 8% Spandex
   • Care Instructions:Machine Wash and Hand Wash
   • Origin:Imported
   • Fleece Lining:Ultra Soft, Thin
   Our verdict

   “This set is best for skiers seeking a lightweight, mobility-focused base layer for moderate winter conditions.”

   → See it on Amazon →

7. Men’s Thermal Underwear Long Johns Set – Winter Base Layer for Hunting, Sports, and Cold Weather

   

   Best for Extreme Cold and Durability

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   This set excels at retaining warmth in the coldest conditions, thanks to its 220g/m² fabric, making it a step above lighter options like the WEERTI fleece-lined long johns. Its four-way stretch and durable fabric suit prolonged outdoor use, but its bulkier weight can restrict movement slightly compared to the ultralight sets. Designed for serious cold, it’s less suitable for mild days or active pursuits where breathability and flexibility are more critical. It makes the most sense for skiers who face extreme weather and need a rugged, insulating base layer that can withstand tough conditions.

   Pros:

   • Highly effective at retaining warmth in extreme cold
   • Moisture-wicking fabric keeps you dry and comfortable
   • Four-way stretch for maximum mobility and durability

   Cons:

   • May be too warm for mild weather conditions
   • Limited color options

   Best for: Winter athletes and hunters facing very low temperatures and demanding environments

   Not ideal for: Casual skiers or those skiing in mild weather, where lighter layers would suffice

   • Fabric:90% Polyester, 10% Spandex
   • Weight:220g/m²
   • Care Instructions:Hand or gentle machine wash in cold water, line dry
   • Design:Crew Neck, Tagless
   • Features:Moisture-wicking, Four-way stretch, Fitted with elastic band
   Our verdict

   “This set is ideal for those needing serious insulation and durability in very cold conditions, but may be too heavy for lighter days.”

   → See it on Amazon →

8. HEROBIKER Long Johns Thermal Underwear for Men Skiing Winter Warm Hunting Gear Fleece Lined Base Layer Set Top Bottom

   

   Best for Maximum Warmth and Flexibility

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   This set is built for serious winter conditions, with a fleece lining that offers plush warmth and a fabric blend that balances breathability and stretch. Compared with lighter, more active-oriented options like the Men’s Thermal Underwear Set, HEROBIKER prioritizes insulation, making it less suitable for high-output activities or milder weather. Its softness and flexibility make it comfortable for prolonged wear, but its bulk may restrict mobility slightly and it’s less ideal for those who prefer lightweight layers. This choice makes the most sense for skiers or hunters in very cold environments where warmth is the priority over agility.

   Pros:

   • Soft and warm fabric for cold weather
   • Breathable and lightweight for comfort
   • Four-way stretch for flexibility and movement

   Cons:

   • May be too warm for mild weather
   • Limited color options

   Best for: Cold-weather enthusiasts needing maximum insulation and comfort for extended outdoor activities

   Not ideal for: Those seeking a lightweight, high-mobility base layer for active skiing in mild conditions

   • Fabric composition:90% polyester, 10% spandex
   • Care instructions:Machine Wash
   • Origin:Imported
   Our verdict

   “This set is perfect for skiers and hunters who need serious warmth and flexibility in frigid conditions, though it’s less suited for active days in milder weather.”

   → See it on Amazon →

9. WEERTI Women’s Thermal Long Johns with Fleece Lining – Cold Weather Base Layer

   

   Best for Comfortable Warmth and Flexibility

   View on Amazon

   Compared with the men’s options, WEERTI’s fleece-lined long johns focus on providing all-day warmth with a plush lining and a snug fit. Its polyester-spandex blend offers flexibility and moisture-wicking, but it’s less suited for very high-intensity skiing in extreme cold, where thicker or more specialized layers might be necessary. The fleece lining ensures comfort and warmth, yet the slim fit and lightweight design may not provide enough insulation in the coldest conditions. This pick makes sense for women looking for a reliable, comfortable base layer for moderately cold days or layered skiing in variable weather.

   Pros:

   • Provides all-day warmth with fleece lining
   • Flexible four-way stretch for comfortable movement
   • Lightweight and moisture-wicking for dry comfort

   Cons:

   • May be too warm for mild weather
   • Limited color options

   Best for: Women seeking a flexible, comfortable layer for cold weather skiing or winter activities

   Not ideal for: Extreme cold conditions or high-exertion days where extra insulation is needed

   • Fabric:92% Polyester, 8% Spandex
   • Lining:Fleece
   • Care Instructions:Machine Wash
   • Origin:Imported
   Our verdict

   “This option suits women wanting a cozy, flexible base layer for moderate cold and active wear, but it might not suffice for extreme cold or high-output skiing.”

   → See it on Amazon →

10. Amazon Essentials Men’s Thermal Waffle Knit Long Johns Underwear Set for Cold Weather, Multipacks

    

    Best Budget-Friendly Multi-Pack

    View on Amazon

    This set offers a practical, budget-conscious choice with a classic waffle knit that provides lightweight warmth. Its slim fit and breathable fabric make it suitable for everyday winter wear, similar to the lightweight polyester sets, but it’s less technical in moisture-wicking and stretch capabilities. Compared to specialized activewear like the Men’s Thermal Underwear Set with fleece lining, this option sacrifices some performance features for affordability. It works well for casual skiers or those on a tight budget who don’t need high-performance insulation but want comfort and layering versatility.

    Pros:

    • Slim fit design provides a tailored look
    • Breathable waffle knit fabric offers comfort and warmth
    • Lightweight for all-day wear in cold weather

    Cons:

    • Limited color options
    • May not be suitable for very extreme cold without additional layers

    Best for: Budget-conscious skiers or casual winter outdoor enthusiasts who want multiple sets for layering

    Not ideal for: Serious skiers facing extreme cold or engaging in high-output activities requiring advanced moisture management

    • Fabric type:60% Cotton, 40% Polyester
    • Care instructions:Machine Wash
    • Origin:Imported
    • Bottom style:Long Underwear
    Our verdict

    “This multipack is ideal for budget-minded skiers seeking reliable, lightweight base layers for moderate winter conditions and casual use.”

    → See it on Amazon →

How We Picked

To determine the best thermal underwear for skiing, we evaluated each product based on key factors such as warmth-to-weight ratio, moisture-wicking ability, fit, durability, and ease of care. We prioritized products that perform well in cold conditions while remaining comfortable during active movement. Versatility for different winter activities, user reviews, and overall value also influenced our rankings. Products were ranked to reflect their suitability for various skier needs—from casual to performance-focused—highlighting the best options across different price points and features.

Factors to Consider When Choosing Thermal Underwear For Skiing

Choosing the right thermal underwear for skiing involves considering several factors that impact comfort, warmth, and performance. Beyond just looking at material, understanding how fit, weight, and technical features work together can help you make a smarter purchase. This guide outlines the key considerations to help you find the best base layer for your skiing adventures, avoiding common pitfalls like over-layering or selecting gear that doesn’t wick moisture effectively.

Material Composition

Materials like merino wool, synthetic blends, and polyester fleece each offer unique benefits. Merino wool excels at moisture management, odor resistance, and warmth without bulk, making it ideal for longer ski days. Synthetic fabrics tend to dry faster and are often more affordable, though they may retain odors over time. Fleece-lined options provide added insulation but can increase bulk, so consider your layering system and activity level when selecting material types.

Fit and Comfort

A proper fit ensures maximum insulation and mobility. Too tight, and you risk restricting movement or cutting off circulation; too loose, and you lose heat and efficiency. Look for products with stretch or tailored cuts designed for active wear. Consider your layering strategy—if you prefer a snug fit for performance, check sizing carefully, especially if you plan to wear additional layers underneath.

Weight and Bulk

Lightweight options are more comfortable for high-mobility activities and layering, but may sacrifice some warmth. Heavier, fleece-lined styles provide superior insulation but can feel bulky and restrict movement if not fitted properly. Think about your typical skiing conditions—if you’re hitting very cold slopes, a bulkier layer might be justified, but for milder days, lighter options will offer better comfort.

Moisture Wicking and Breathability

Effective moisture management prevents sweat from cooling your body and keeps you dry. Look for fabrics with proven wicking properties and good airflow features. Breathability is especially important during high-intensity activity, as excess sweat can lead to chills once you stop moving. Avoid overly thick fabrics that trap heat and moisture or those that don’t dry quickly.

Durability and Ease of Care

Thermal underwear should withstand repeated washing and outdoor use. Consider products with reinforced stitching or high-quality fabric blends. Machine washable, quick-drying options save time and effort. Remember that higher-end materials like merino wool require gentle care, while synthetics are usually more rugged and low-maintenance.

Frequently Asked Questions

How do I choose the right thermal underwear for very cold conditions?

For extremely cold conditions, prioritize thermal underwear with fleece lining or merino wool blends that offer superior insulation. Look for options with a snug fit to trap body heat without restricting movement. Layering is key—pair lightweight base layers with insulating mid-layers for added warmth. Keep in mind that more bulkier layers may slightly reduce mobility but will significantly boost warmth.

Should I opt for merino wool or synthetic fabrics for skiing?

Merino wool provides excellent warmth, moisture-wicking, and odor resistance, making it a favorite for multi-day ski trips. Synthetic fabrics tend to dry faster and are often more affordable, ideal for casual or shorter ski outings. Consider your activity level, length of trip, and sensitivity to odor when choosing between the two. Combining layers—merino next to skin with synthetic outer layers—can also be an effective strategy.

How tight should my thermal underwear fit for skiing?

The fit should be snug but not restrictive, allowing full mobility without bunching or pinching. Properly fitted thermal underwear enhances heat retention and moisture management. If you’re layering, ensure that the base layer fits well underneath your outer ski gear. Avoid overly tight options that can restrict blood flow or cause discomfort during active movement.

Are multipack sets a good choice for skiing?

Multipack sets often provide excellent value and are suitable for casual skiers or those on a budget. They allow for multiple wears and easy replacements when needed. However, they may not always offer the same technical features or tailored fit as single, high-performance base layers. For serious or frequent skiers, investing in specialized, higher-quality options might deliver better warmth and durability over time.

How should I care for my thermal underwear to prolong its life?

Follow the manufacturer’s washing instructions carefully—most high-quality fabrics benefit from gentle, cold wash cycles and air drying. Avoid fabric softeners, which can impair moisture-wicking properties, and do not bleach. Proper care ensures that the material maintains its insulation and moisture management capabilities, allowing your thermal underwear to perform effectively over multiple seasons.

Conclusion

For most skiers seeking a reliable all-around option, the Amazon Essentials Men’s Thermal Waffle Knit Set offers great value and decent warmth. Those prioritizing maximum insulation should consider fleece-lined models like the HEROBIKER Fleece-Lined Set. Beginners or casual users will benefit from affordable multipacks, while performance-focused skiers may prefer technical merino wool options. Ultimately, your choice depends on your skiing frequency, typical weather, and comfort preferences—select accordingly for the best experience on the slopes.