Cold Weather Long Underwear

Cold weather long underwear is a must-have for anyone who loves spending time outdoors when the temperature drops. With options designed to keep you comfortable and warm, these essential layers help you enjoy winter activities or everyday errands with ease. Whether you're heading out for a brisk morning walk or layering up for a weekend adventure, you'll find styles that offer lasting value and dependable performance season after season. Explore our collection to find the right fit for your cold weather needs, all crafted with the quality and durability you expect.

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Men's Two-Layer Union Suit

A supersoft, roomy red union suit made from a warm wool blend with nonchafing seams and rib-knit cuffs.

Pros: Functional Fits well Well-made Warmth Comfortable
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
Price was from: $99.95 now: $84.99

A versatile base layer made of itch-free merino wool that wicks sweat and resists odor.

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

A strong, lightweight dark flint gray silk crewneck, perfect as a first layer against the cold.

Pros: Durable fabric Great for travel Feels like real silk Comfortable fit Excellent warmth
Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
Price was from: $99.95 now: $84.99

A high-rise, slim-leg base layer made of itch-free merino wool in eggplant heather for versatile warmth.

Pros: Great fit Perfect weight Warmth Non-itchy Comfortable fabric
Men's Cresta Ultralight 150 Crew Top

An alloy gray, 100% merino wool crew top offering lightweight warmth and comfort with thumbhole cuffs.

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

An ultralight base layer made from 100% merino wool, offering warmth, moisture-wicking, and odor resistance.

Pros: Lightweight Warm without being bulky Stylish Durable Comfortable
Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg

A high-rise, slim-leg base layer made of itch-free merino wool, perfect for any season.
Women's L.L.Bean Simple Soft Base Layer, Pants

A lightweight, moisture-wicking base layer pant in sea salt, made from 94% polyester and 6% spandex.

Pros: Adds extra warmth Lightweight Softness Good fit Comfortable
Women's Cresta Wool Ultralight 150 Base Layer, Hoodie
Price was from: $99.95 now: $84.99

An alloy gray, 100% Merino wool hoodie base layer that wicks moisture and resists odors.

Pros: High-quality material Perfect fit Lightweight Easy to care for Great color combination
Men's L.L.Bean Simple Soft Base Layer, Pants

A lightweight, moisture-wicking synthetic base layer pant in faded sage heather, perfect for everyday warmth.

Pros: Great for layering Provides warmth Lightweight feel
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
Women's Cresta Ultralight 150 Turtleneck, Stripe
Price was from: $99.95 now: $84.99

An itch-free 100% merino wool turtleneck that wicks moisture, resists odors, and features thumbhole cuffs.
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 Pant, Print

A heavyweight base layer pant in kelp green camo, made from recycled polyester for warmth and moisture-wicking.
Women's PrimaLoft ThermaStretch Fleece Tights, Mid-Rise

A pair of mid-rise black fleece/nylon tights with a plush interior, perfect for warmth and comfort.

Pros: Great fit Soft and cozy High quality Very comfortable Exceptional warmth
Women's PrimaLoft ThermaStretch Fleece Pants, Mid-Rise Straight-Leg

A pair of mid-rise, straight-leg fleece pants in black, featuring moisture-wicking PrimaLoft fabric and zippered pocket.

Pros: Quality construction Warmth Softness Comfortable Good fit
Women's Silk Pointelle, Pants

A virtually weightless pair of cream silk pants with a feminine pointelle-knit and elasticized waist.

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, bulk-free black silk turtleneck providing breathable warmth under casual and active outfits.

Pros: Excellent customer service Thin and comfortable Great turtleneck fit Soft and warm material Lightweight and warm
Men's Cresta Midweight 250 Quarter-Zip Top
Price was from: $120 now: $99.99

A versatile merino wool quarter-zip top in saddle heather, perfect for warmth and odor resistance.

Pros: Keeps you warm Excellent base layer Comfort Durability Versatility
Women's Cresta Midweight 250 T-Zip Top
Price was from: $120 now: $99.99

A versatile eggplant heather base layer made of 100% merino wool, designed to wick sweat and resist odor.

Pros: Well-made Warmth True to size Versatile Comfortable
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, resists odors, and features thumbhole cuffs.

Cold Weather Long Underwear

When the days grow shorter and a chill settles in, having the right long underwear can make all the difference between staying comfortable outdoors and feeling the cold seep in. Long underwear—sometimes called base layers—form the foundation of any cold-weather wardrobe, whether you’re heading out on a family hike, spending the day at the ski slopes, or simply enjoying a crisp morning walk with the dog. Thoughtful layering starts here, closest to the skin, and choosing the right pair means considering your activity level, personal comfort, and the types of adventures you have planned. Many people find that long underwear is just as useful for everyday errands and yardwork as it is for winter camping trips or snowshoeing getaways. It’s a practical gift for anyone who loves the outdoors, from college students walking across campus to grandparents who want to keep cozy on brisk strolls. Even kids waiting for the school bus or building snow forts in the backyard appreciate the extra warmth and comfort that a good base layer brings.

When selecting long underwear for cold weather, think about the fabric and weight that best match your needs. Merino wool is prized for its natural softness, warmth, and ability to help manage odor, making it a favorite for longer outings or travel. Synthetic blends, like polyester and spandex, are popular for their quick-drying qualities and ability to move moisture away from the skin, which helps keep you comfortable during active pursuits like cross-country skiing or winter running. Cotton blends, while cozy for lounging or casual use, are best saved for low-key days since they tend to hold moisture during heavy activity. The weight of the fabric also matters: lightweight options are great for layering under office attire or for mild days, while midweight and heavyweight styles provide more insulation for truly cold conditions or extended time outside. Many families keep a few different weights on hand to mix and match as the weather shifts, ensuring everyone can find their comfort zone no matter what the day brings.

Long underwear is more than just a seasonal staple—it’s a versatile layer that supports a range of outdoor activities and family traditions. Whether you’re packing for a fall camping trip, gearing up for a snowy weekend, or looking to add an extra layer for those first frosty mornings, the right base layer can help you stay outside longer and enjoy every moment. Thoughtful features like flat seams, stretch panels, and tagless designs make a big difference in all-day comfort, while a good fit ensures freedom of movement for everything from raking leaves to sledding with the kids. For those seeking more information or looking to compare options in detail, visit our Cold Weather Undergarments page for additional guidance and inspiration as you prepare for the cooler months ahead.

FAQs

Cold weather long underwear is often made from materials like merino wool, polyester blends, and cotton. Merino wool is prized for its natural warmth and moisture-wicking properties, while polyester blends offer durability and quick-drying comfort. Cotton is soft and breathable, but best for low-activity use since it retains moisture. Each material provides its own unique benefits, so you can choose the one that best fits your needs and activities.

To keep your long underwear in great shape, wash it in cold water with mild detergent and avoid using fabric softeners, which can affect moisture-wicking properties. Tumble dry on low or air dry to preserve the fabric's integrity. Always check the care label for specific instructions, as some materials like merino wool may require extra care.

Long underwear is a versatile layer that benefits anyone spending time outdoors in cold weather. It's ideal for outdoor enthusiasts, winter commuters, sports spectators, and kids playing in the snow. Even those who prefer to stay indoors can enjoy the cozy warmth and comfort that long underwear provides during chilly months.

Absolutely. Long underwear is designed to be lightweight and comfortable, making it easy to wear under jeans, work pants, or even dress clothes. It adds a layer of warmth without bulk, so you can go about your daily routine—indoors or out—while staying comfortable on cold days.

For active pursuits like skiing, snowshoeing, or winter hiking, look for long underwear with moisture-wicking and quick-drying properties, as well as features like flat seams to prevent chafing and stretch panels for ease of movement. Breathability is also important to help regulate body temperature during high-energy activities.

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Cold Weather Long Underwear