Updated September 20, 2019 by Karen Bennett

The 10 Best Women's Long Underwear

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This wiki has been updated 12 times since it was first published in October of 2016. Whether you're planning on skiing, hiking, or camping in cooler climates, or you simply want to ensure you stay warm at work or school, our selection of women's long underwear should provide you with enough options to keep the worst of winter at bay. We've added high-tech clothing for the harshest cold snaps as well as lighter choices for those who don't have to worry about sub-zero temperatures. When users buy our independently chosen editorial picks, we may earn commissions to help fund the Wiki. Skip to the best women's long underwear on Amazon.

10. Rocky Thermal Long John

9. Hanes X-Temp Thermal Pants

8. Duofold Heavyweight Double-Layer Thermal Shirt

7. Meriwool Midweight

6. Terramar Thermasilk

5. Arc'teryx Rho Ar

4. Smartwool 150 Long Sleeve

3. Columbia Omi-Heat Thermal Insulated

2. WoolX Hannah

1. Under Armour Base 2.0

Special Honors

REI Co-op Merino Midweight Base Layer Tights These bottoms feature ultra-fine merino wool that offers a soft feel without any itchiness, while the material naturally wicks away sweat and resists odors. The low-bulk seams prevent chafing, while the crotch gusset allows for full range of movement. This makes them great for outdoor activities like skiing, running, and more. This low-maintenance choice is conveniently machine washable. rei.com

Patagonia Capilene Midweight Bottoms These versatile base-layer pants have a smooth outer texture that makes for easy layering, while their brushed-grid interior ensures warmth, breathability, and wicking. Their proprietary odor-control technology allows you to wear them more and wash them less. They’re comfortable as well, thanks to a flat waistband with brushed inner elastic. patagonia.com

Editor's Notes

September 16, 2019:

Whether you’re looking for durable, warm women’s merino wool long underwear or a set made from lightweight, easy-to-care-for polyester material, you’ve got plenty of options in many designs and colors. Joining the list in today’s update are the reliable Columbia Omni-Heat Thermal Insulated pants, which are designed to provide breathable warmth, whether you’re out in the cold skiing, ice-fishing, or running. This stretchy choice is sure to keep you comfortable, thanks to the moisture-wicking gusset and waistband and antimicrobial properties for odor control. They layer easily under your other clothes, so you won’t feel restricted.

If you prefer pants made from an all-wool material, look to the Meriwool Midweight, which, although they should be washed by hand, can be hung to dry easily, thanks to a handy, sewn-in loop. You can buy them with confidence, thanks to their one-year manufacturer’s warranty. For an equally durable, warm top, look to the WoolX Hannah, which comes with plenty of nifty bells and whistles, like flatlock seams for comfort, underarm gussets for mobility, and a lack of itchy, annoying tags. This one is conveniently safe for machine washing and drying.

Leaving the list today is the Rocky Thermal Long John, due to issues with availability.

October 10, 2018:

Removed the Polarmax Tech Silk due to misleading claims about fiber content. Added several options, including the Arc'Teryx, WoolX, and Meriwool, for more extreme climates. Investigated popular Smartwool choices, deciding to add the Merino 150 but omit the NTS bottoms because of reported comfort issues with the waistband.


Karen Bennett
Last updated on September 20, 2019 by Karen Bennett

Karen Bennett lives in Chicago with her family, and when she’s not writing, she can usually be found practicing yoga or cheering on her kids at soccer games. She holds a master’s.degree in journalism and a bachelor’s in English, and her writing has been published in various local newspapers, as well as “The Cheat Sheet,” “Illinois Legal Times,” and “USA Today.” She has also written search engine news page headlines and worked as a product manager for a digital marketing company. Her expertise is in literature, nonfiction, textbooks, home products, kids' games and toys, hardware, teaching accessories, and art materials.


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