Lightweight Long Underwear

Stay warm and comfortable with our collection of lightweight long underwear, designed for optimal layering in cooler weather. Crafted from breathable, moisture-wicking fabrics, these essentials provide warmth without the bulk, making them perfect for outdoor activities or lounging at home. Enjoy a snug fit that moves with you, ensuring maximum flexibility and comfort throughout your day. Ideal for both active and casual wear, our lightweight long underwear keeps you cozy while maintaining a sleek profile. Embrace the cold with confidence and style!

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10 products
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SmartWool Women's Merino 150 Base Layer Bottoms
  • Black

SmartWool Women's Merino 150 Base Layer Bottoms

$90.00

(2)

slim fit base layer bottom constructed with lightweight merino jersey fabric with a recycled nylon core for increased durability features merrow stretch stitching designed to elevate comfort, range of motion, and fit merino- lined elastic waistband for maximum comfort 31 ”

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5 ErinH
[ These worked great for skiing in single digit to mid- 20 ’s temps. They ’ re comfortable, not scratchy, warm but breathable. Will definitely buy more.

5 Wasloki
[ Bought for my wife for an upcoming trip to the Arctic. She loves them. She says they are soft and not itchy. Like they don ’ t require to much special treatment in the wash and don ’ t shrink

On Sale
Smartwool Men's Classic Thermal Merino Base Layer Bottoms
  • Black
  • Charcoal Heather

Smartwool Men's Classic Thermal Merino Base Layer Bottoms

$61.97-$115.00

WAS: $115.00*

(3)

the technical benefits of 100% merino wool will help you keep your game at a high level for longer. ... slim fit 100% merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance fit updated to improve functionality while...

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5 Kwhendy
Bought these about a week ago and wear them nearly every day. I love how they keep me warm but do n't make me hot.

5 Mountain time
Fit great especially in length. Perfect weight to stay warm in cold weather.

5 tjflan2
Fit true and worked outstanding as base layer for football game. Very comfortable and breathable.

Halfdays Women's Ruth Lightweight  Merino Leggings

Halfdays Women's Ruth Lightweight Merino Leggings

$115.00

Quick Facts

designed for- 30° f- 60° f temperature range machine wash cold inside out with like colors do not bleach or use fabric softeners lay flat to dry do not

Halfdays Women's Clare Lightweight  Merino Top

Halfdays Women's Clare Lightweight Merino Top

$115.00

Quick Facts

thermo- regulating merino wool and soft bamboo blend ... slim fit t- shirt mock neck lightweight blend ultra- soft and breathable ... our ultra- soft and breathable base layer top, a lightweight blend of bamboo and merino wool for lodge lounging or under ski

Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip Long Sleeve Top
  • Black

Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip Long Sleeve Top

$90.00

Quick Facts

side seams help minimize chafing while wearing a pack and offer a body- enhancing fit. ... this top uses their lightest- weight merino fabric wrapped around a nylon core to increase durability, while still keeping the 100% soft, merino wool you love next to

Smartwool Men's Classic All-Season Merino Baselayer Bottoms
  • Black

Smartwool Men's Classic All-Season Merino Baselayer Bottoms

$85.00

Quick Facts

slim fit light weight merino jersey fabric uses a nylon core to increase durability while still keeping 100% merino wool next to skin fully functional fly merino- lined, 1. 5 ”( 4 cm) wide elastic waistband designed for maximum comfort flatlock seam construction designed to minimize chafing fit...

On Sale
Carhartt Men's Force Lightweight Stretch Base Layer Pants
  • Black

Carhartt Men's Force Lightweight Stretch Base Layer Pants

See Price in Cart

WAS: $34.99*

Quick Facts

Good fit ... Very good quality product highly recommend! ... My son loves them! ... machine wash with cold ... dry® wicks away sweat rugged flex® moves with you fights

On Sale
Duofold Men's Flex Weight Pants
  • Black

Duofold Men's Flex Weight Pants

$9.97

WAS: $24.99*

(47)

varitherm base layer lightweight, second skin feel champion vapor technology with x- temp™ moisture wicking quick drying ultra soft brushed back fabric close- to- the- body flexes and stretches for total mobility chafe- resistant stitching no- bind elastic waistband functional fly...

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5 soKate120mm
I already own many Duofold items and getting the leggings was a no brainer. I like the excellent quality and the warmth it provides. The fabric is very stretchy without being too constricting. It has a fly for those who use it. The fit is perfect.

5 DeniseLG307
Bought this for my husband who works outside, he said they are comfortable and keep him warm

5 Nita22
Bought them for grandson, perfect fit& durable.. he loves them!!!!

5 YA7E
honestly very skeptical at first, especially considering the price but these are one of the most comfortable pair of pants i own, they definitely regulate temperature

5 rubdog5
A must when going snowboarding. My legs were very warm and comfortable to wear

Smartwool Men's Classic All-Season Merino Base Layer Long Sleeve Top
  • Black

Smartwool Men's Classic All-Season Merino Base Layer Long Sleeve Top

$85.00

(1)

with core spun technology, smartwool has wrapped lightweight merino around a nylon core for added durability, while still keeping the comfort of ultra- soft, responsibly- sourced merino next to

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5 MAJB
Great quality, ordered for my husband for Christmas. He loved it... would order again.

On Sale
Duofold Youth Flex Weight Pants
  • Black

Duofold Youth Flex Weight Pants

$8.97

WAS: $19.99*

Quick Facts

varitherm flex weight base layer pants lightweight, second- skin feel that flexes with every move champion® vapor technology with x- temp® dries faster as your body heat rises wicks sweat away from the skin and dries quickly for superior comfort ultra soft brushed back fabric...

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