On Sale: Women's Long Underwear from Backcountry.com

Patagonia Active Boy Short - Women's

With a low-rise cut, the body-hugging, wicking Patagonia Women's Active Boy Shorts keep your sassy side covered.

Read Reviews

Available Sizes: XS, S, M, L

ON SALE:

$25.00 (50% off)

Arc'teryx Rho SL Bottom - Women's

The Women's Rho SL Bottom is a nearly weightless addition to your active wardrobe.

Available Sizes: L, L/Boot Cut, M, M/Boot Cut, S, S/Boot Cut, XL, XL/Boot Cut, XS, XS/Boot Cut

ON SALE:

$49.95 (30% off)

Patagonia Capilene 3 Zip-Neck Long-Sleeve - Women's

Stay cool while cross country skiing in the Patagonia Women's Capilene 3 Zip-Neck, and then stay warm while waiting for your friends to catch up.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$45.00 (10% off)

Patagonia Capilene 1 Scoop-Neck Long-Sleeve - Women's

The Patagonia Women's Capilene 1 Long-Sleeve Scoop-Neck is a silkweight base layer you'll wear all year.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$34.20 (10% off)

Patagonia Capilene 2 Zip-Neck Long-Sleeve - Women's

Stay cool in summer and warm in winter with the lightweight Patagonia Women's Capilene 2 Zip-Neck base layer.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$43.00 (20% off)

Ex Officio Give-N-Go Shelf Bra Camisole - Women's

The Ex Officio Women's Shelf Bra Camisole offers a little support and a lot of freedom for climbing or hiking on hot afternoons.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$27.16 (20% off)

Patagonia Capilene 2 Bottoms - Women's

Patagonia made the Women's Capilene 2 Bottoms with a knit Capilene fabric for maximum breathability.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$36.00 (10% off)

Ex Officio Give-N-Go Boy Cut Brief - Women's

Save room in your backpack by only taking two pairs of Ex Officio Women's Boy Cut underwear on your next trip. Wear one pair while the other dries at your hostel room or campsite after a wash in the sink or lake.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$14.36 (20% off)

Patagonia Capilene 3 Bottoms - Women's

Gear up for cold weather with the Patagonia Women's Capilene 3 Bottoms.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$39.60 (20% off)

Mountain Hardwear Power Stretch Hoody - Women's

The Mountain Hardwear Women's Power Stretch Hoody is a warm, heavyweight mid-layer for alpine climbing or a toasty outer layer for chilly days on the trail.

Available Sizes: XS, S, M, L, XL

ON SALE:

$85.46 (10% off)

Ex Officio Soytopia Seamless Thong - Women's

We realize you probably never thought of putting soy on your butt (or erm, between your butt, as the case may be). The soy, nylon, and Lycra fabric in the low-rise Ex Officio Women's Soytopia Seamless Thong has natural wicking and anti-odor properties.

Available Sizes: XS/S, M, L/XL

ON SALE:

$14.36 (20% off)

Ex Officio Give-N-Go Bikini Brief - Women's

Ex Officio's Bikini Brief Underwear are the one pair you'll pack every time.

Read Reviews

Available Sizes: XS, S, M

ON SALE:

$12.76 (20% off)

SmartWool Microweight Hipster - Women's

The SmartWool Women's Microweight Hipster features a comfy, skinny waistband, smooth flat-locked seams, and a touch of stretchy Lycra for a close, non-bulky fit.

Available Sizes: XS, S, M, L, XL

ON SALE:

$31.46 (10% off)

Marmot Lightweight Long-Sleeve Crew - Women's

Slip into the Marmot Women's Lightweight Long-Sleeve Crew whether you need a wicking antimicrobial base layer for your weekend adventure, or just a silky-smooth top while you wind down after a long day at work.

Available Sizes: XS, S, M, L, XL

ON SALE:

$35.06 (10% off)

Icebreaker Nature Ultralite Cami - Women's

The Icebreaker Women's Nature Ultralite Cami is an ideal next-to-skin layer because its merino wool fabric helps you stay comfortable in warm and cool weather alike.

Available Sizes: XS, S, M, L, XL

ON SALE:

$35.96 (10% off)

Isis Brief - Women's

With an advanced fabric blend and a high cut that makes any workout more pleasurable, the Isis Women's Brief covers you where you are most vulnerable.

Available Sizes: S, M, L

ON SALE:

$15.26 (10% off)

Patagonia Active Hipster - Women's

Hike a hundred miles, or just sleep late on the weekend while wearing the Patagonia Women's Active Hipsters underwear.

Read Reviews

Available Sizes: XS, S, L

ON SALE:

$18.00 (10% off)

Ex Officio Soytopia Seamless Boy Short - Women's

Sure, polyester undies wick moisture and dry quickly, but they also hold on to odors even throughout washing-machine cleans. The Ex Officio Women's Soytopia Seamless Boy Shorts have natural odor-resistant and wicking properties.

Available Sizes: XS/S, M, L/XL

ON SALE:

$15.96 (20% off)

SmartWool Midweight Zip-T Shirt - Long-Sleeve - Women's

Wear the SmartWool Women's Midweight Zip-T long-sleeve shirt for stop-and-go aerobic activities or as a warm base layer.

Read Reviews

Available Sizes: XS, M, L, XL

ON SALE:

$79.95 (20% off)

Marmot Midweight Crew Shirt - Long-Sleeve - Women's

Marmot made the Women's Midweight Long-Sleeve Crew with Bacteristat infused fabric to reduce odors during high-output activities.

Available Sizes: XS, S, M, L, XL

ON SALE:

$40.46 (10% off)

Marmot Lightweight Bottom - Women's

The Marmot Women's Lightweight Bottom holds in just the right amount of heat to keep you warm (but not too warm) on winter trail runs and cross country ski trips.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$32.36 (10% off)

Marmot Midweight Bottom - Women's

Base layers can get pretty smelly on a weeklong trip, so Marmot used a Cocona treatment to reduce the funk factor when you head to the mountains with the Women's Midweight Bottom.

Available Sizes: XS, S, M, L

ON SALE:

$40.46 (10% off)

Ex Officio Give-N-Go String Bikini - Women's

Ex Officio's String Bikini Underwear for women make living out of a backpack a little easier.

Read Reviews

Available Sizes: XS, L, XL

ON SALE:

$12.76 (20% off)

Marmot Power Stretch Pant - Women's

Slip into the stretchy Marmot Women's Power Stretch Pant whether you're headed out for a chilly morning jog or a January morning tour to your favorite stash. These midweight fleece layering pants come in handy when the temps drop hard.

Read Reviews

Available Sizes: S, M, L, XL

ON SALE:

$67.46 (10% off)

Ex Officio Give-N-Go Full Cut Brief - Women's

You're planning a long backpack trip and would like a pair of wicking, quick-drying undies that can go a few days without offending your tent partners. Turn to the Ex Officio Women's Give-N-Go Full-Cut Briefs.

Read Reviews

Available Sizes: XS, S, L

ON SALE:

$14.36 (20% off)

SmartWool Microweight Boy Brief - Women's

Wear the SmartWool Women's Microweight Boy Brief when you trail run, hang out at base camp, do pilates, or sit by the fire after a day skiing.

Read Reviews

Available Sizes: XS, XL

ON SALE:

$34.95 (20% off)

Marmot Power Stretch Fleece Capri - Women's

The Marmot Women's Power Stretch Fleece Capri provides excellent insulation down to your boot tops, and it stops there so you don't have a mess of bunched-up fabric at your shins.

Available Sizes: XS, L, XL

ON SALE:

$58.46 (10% off)

Columbia Appalachian Universal Travel Weight Pant - Women's

When you're being active for several days, the Columbia Women's Appalachian Universal Travel Weight Pant gives you a smooth comfortable fit with high performance.

Read Reviews

Available Sizes: XL

ON SALE:

$31.95 (20% off)

The North Face El Cap Shirt - Women's

The North Face Women's El Cap Shirt moves moisture away from your skin and keeps you warm on your climbing, ski touring, or hiking adventures

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$49.46 (10% off)

Mountain Hardwear Power Stretch Zip Tee Long-Sleeve - Women's

The Mountain Hardwear Power Stretch Zip Tee is the ideal base or mid-layer piece for female alpine climbers and mountaineers.

Read Reviews

Available Sizes: XS

ON SALE:

$63.71 (25% off)

The North Face Aurora Zip-Neck Shirt Long-Sleeve - Women's

Wear The North Face Women's form-fitting Aurora Zip-Neck Shirt for high-altitude summer mountaineering or as a layer on snowy winter terrain.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$54.57 (30% off)

Burton Expedition 1/4 Zip Top - Women's

Is your jacket not quite warm enough for today's chilly weather? Start your layering with the Burton Women's Expedition ¼ Zip Top to fight off the chill.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$45.47 (30% off)

The North Face VaporWick Crew - Long-Sleeve - Women's

The North Face VaporWick Long-Sleeve crew has impressive moisture wicking and quick drying properties.

Read Reviews

Available Sizes: XS, S, M, L, XL

ON SALE:

$34.95 (30% off)

Clothing

Gear

Accessories

On Sale: Women's Long Underwear

Shop By Brand

My Cart

Gear Questions RSS FeedGear Questions

Email Opt-In

Best Sellers