Cold Weather Underwear

Cold weather underwear is a must-have for anyone who enjoys spending time outdoors when the temperatures drop. Designed to provide reliable comfort and lasting value, these essentials help you stay warm so you can make the most of every winter adventure. With versatile styles for all activities, cold weather underwear offers an easy way to layer up and enjoy the season with confidence. Whether you're heading out for a hike or enjoying time with family, you'll appreciate the dependable quality and timeless appeal built into every piece.

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Men's Two-Layer Union Suit

A supersoft red union suit with a wool blend for warmth and flexibility, featuring nonchafing flatlock seams.

Pros: Fits well Well-made Warmth Comfortable Good value
Men's Cresta Wool Midweight 250 Crew Top

A versatile dark black merino wool base layer that wicks sweat, resists odor, and keeps you warm.

Pros: Perfect fit Soft and comfortable Durable fabric Available in big and tall sizes Great warmth
Men's Silk Underwear, Pants

A strong, lightweight black silk base layer offering warmth and comfort without added bulk.

Pros: Great fit Quality Warmth Comfortable Versatile for weather
Men's Cresta Midweight 250 Pants

A versatile base layer made of itch-free merino wool, wicking sweat and resisting odor in dark black.

Pros: Great color Versatile use Soft and lightweight Excellent warmth Comfortable fit
Men's Silk Underwear, Crewneck

A lightweight black silk crewneck providing strong, comfortable warmth as a perfect base layer.

Pros: Durable Comfortable Warm Great for travel Feels like real silk
Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg

A high-rise, slim-leg base layer made of itch-free merino wool that wicks sweat and resists odor.

Pros: Great fit Perfect base layer Warmth Non-itchy Comfortable fabric
Women's Cresta Midweight 250 Crew Top

A dark black, midweight merino wool crew top that wicks sweat, resists odor, and keeps you warm.

Pros: Great fit Breathable fabric High quality Perfect base layer Excellent warmth
Men's Cresta Ultralight 150 Crew Top

An alloy gray, 100% merino wool crew top offering lightweight warmth and comfort for all-season activities.

Pros: Soft material Warmth Good fit Comfortable Versatility
Men's Cresta Wool Ultralight 150 Pants

An ultralight base layer made of 100% merino wool, offering warmth and odor resistance in alloy gray.

Pros: Stylish design Lightweight feel Durable material Warm without bulk Comfortable fit
Women's L.L.Bean Simple Soft Base Layer, Pants

A lightweight, moisture-wicking synthetic base layer pant in dark black, perfect for everyday warmth and layering.

Pros: Adds extra warmth Lightweight Very soft Good fit Comfortable
Men's Cresta Wool Ultralight 150 Base Layer, Hoodie

An ultralight, alloy gray Merino wool hoodie that wicks moisture, resists odors, and fits comfortably under helmets.

Pros: Soft and fleecy interior Ideal for winter sports Warm and comfortable Good fit Fashionable and supportive
Men's L.L.Bean Simple Soft Base Layer, Pants

A lightweight, moisture-wicking base layer in faded sage heather, made from 94% polyester and 6% spandex.

Pros: Great for layering Provides warmth Lightweight feel
Men's Cresta Wool Ultralight 150 Pant, Stripe
Price was from: $89.95 now: $75.99

A slim-leg base layer pant made of itch-free 100% merino wool, available in regatta blue and glacier blue.
Men's L.L.Bean Heavyweight Base Layer Crew Top

A heavyweight base layer crew top in midnight black, made from recycled polyester with moisture-wicking properties.
Men's L.L.Bean Heavyweight Base Layer Hoodie, Print

A heavyweight base layer hoodie in kelp green camo, made from recycled polyester and elastane.
Men's L.L.Bean Heavyweight Base Layer Pant

A heavyweight base layer pant in midnight black, made from recycled polyester with moisture-wicking properties.
Women's PrimaLoft ThermaStretch Fleece Tights, Mid-Rise

A pair of mid-rise fleece tights in nautical navy, featuring moisture-wicking PrimaLoft fabric and a plush interior.

Pros: Great fit Quality Warmth Softness Comfortable
Women's Silk Pointelle, Long-Sleeve Scoopneck

A weightless black silk long-sleeve scoop neck with feminine pointelle-knit fabric for added warmth.

Pros: Lightweight Great color Versatile for layering Soft fabric Comfortable fit
Women's Silk Pointelle, Pants

A virtually weightless pair of dark plum rose silk pants with a feminine pointelle-knit design.

Pros: Comfort Light weight Warmth Softness Good fit
Women's Silk Underwear, Scoopneck

A black silk long-sleeve undershirt offering comfortable warmth without bulk, perfect as a first layer.

Pros: Great fit Lightweight Warmth Silky feel Comfortable
Women's Silk Underwear, Turtleneck

A lightweight, black silk turtleneck providing breathable warmth without bulk, perfect for layering.

Pros: Excellent customer service Comfortable thinness Great turtleneck fit Lightweight and warm Perfect for layering
Men's Cresta Midweight 250 Quarter-Zip Top
Price was from: $120 now: $99.99

A versatile merino wool base layer in saddle heather, featuring a quarter-zip and thumbhole cuffs.

Pros: Convenience Keeps you warm Comfort Durability Versatility
Women's L.L.Bean Heavyweight Base Layer Pants

A versatile, midnight black heavyweight base layer with moisture-wicking, quick-drying, and odor-controlling properties.
Men's Cresta Wool Ultralight 150 Turtleneck
Price was from: $99.95 now: $84.99

An alloy gray, 100% merino wool turtleneck that wicks moisture and resists odors for all-season comfort.

Cold Weather Underwear

When the air turns crisp and the days grow shorter, having the right cold weather underwear can make all the difference in your comfort, whether you’re heading out for a morning walk, gearing up for a family camping trip, or just looking to stay cozy around the house. Cold weather underwear—often referred to as base layers or long underwear—serves as the foundation for any layering system, helping you stay comfortable as temperatures fluctuate. These essentials are crafted in a range of materials, from classic poly-cotton blends and budget-friendly waffle knits to innovative synthetics and premium merino wool. Each material brings its own benefits; for instance, synthetic blends are a go-to for those who need something lightweight and easy to care for, while merino wool is prized for its ability to feel soft against the skin and remain comfortable even when damp. For anyone spending time outdoors—whether it’s a brisk hike, a day on the slopes, or simply shoveling the driveway—the right base layer can make time outside more enjoyable and help you focus on the moments that matter.

Choosing cold weather underwear is often about matching the fabric and weight to your activity and climate. Lightweight options are ideal for layering under everyday clothes or for high-energy pursuits like trail running or cross-country skiing, while midweight and heavyweight options offer extra warmth for less active days or colder conditions. Many families find that outfitting everyone with the right base layers brings a sense of togetherness, whether you’re gathered around a campfire or exploring a snowy trail. Cold weather underwear also makes a thoughtful gift—practical, appreciated, and suitable for anyone from college students heading off to drafty dorms to grandparents who enjoy winter walks. For kids, it’s a way to make sure they stay warm and happy during recess or weekend adventures. And for those who work or volunteer outdoors, reliable base layers can be an everyday staple, helping them stay focused and comfortable through long hours in the elements.

As you explore options for cold weather underwear, it’s helpful to consider how you’ll use them and what matters most—be it ease of care, softness, or the ability to layer comfortably under your favorite jeans or snow pants. Many people find that investing in a few different weights or fabric types allows for greater flexibility as the seasons change. If you’re looking to build out your cold weather wardrobe or find more detailed information on different styles, fabric choices, and layering tips, our Cold Weather Long Underwear page is a helpful resource. No matter where your adventures take you—from backyard gatherings to mountain getaways—having the right base layer ensures you’ll be ready to enjoy every moment outside, all season long.

FAQs

Cold weather underwear is often crafted from merino wool, polyester, nylon, or blends of these materials. Merino wool is prized for its natural temperature regulation and odor resistance, while synthetic fabrics like polyester and nylon are valued for their durability, moisture-wicking capabilities, and quick-drying performance.

Cold weather underwear is designed to be worn as a base layer, directly against the skin. It works best when layered under midlayers such as fleece or flannel shirts, and topped with an outer shell or insulated jacket. This system helps trap warm air close to the body and allows moisture to escape, keeping you comfortable in varying winter conditions.

Yes, features like flatlock seams help reduce chafing during movement, while longer hems and cuffs keep the garment securely in place. Some designs also offer extra stretch for ease of movement, and strategically placed panels for enhanced breathability or warmth, making them ideal for active pursuits in cold weather.

Absolutely. Cold weather underwear is versatile enough for both indoor and outdoor use. Many people wear it as a cozy layer at home, during commutes, or while running errands, as well as for outdoor recreation like hiking, skiing, or snowshoeing.

Cold weather underwear is a thoughtful and practical gift for anyone who enjoys spending time outside in the winter or who simply wants to stay warm and comfortable during colder months. Its versatility and comfort make it a welcome addition to any winter wardrobe.

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Cold Weather Underwear