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Arc'teryxRho Heavyweight Base Layer Bottoms - Men's
$84.83Save 29%compared to  $120.00(62)62 reviews with an average rating of 4.7 out of 5 stars - Top Rated
Wild RyeEvie Raglan Base Layer Top - Women's
$61.83Save 50%compared to  $125.00(11)11 reviews with an average rating of 4.7 out of 5 stars ZoicKids Komfy Bike Short Liners - Kids'
$14.83Save 50%compared to  $30.00(4)4 reviews with an average rating of 4.8 out of 5 stars- Top Rated
Nani SwimwearUinta Base Layer Bottoms - Women's
$36.83Save 50%compared to  $75.00(5)5 reviews with an average rating of 5.0 out of 5 stars Picture Organic ClothingNangha Base Layer Top - Men's
$44.83Save 50%compared to  $90.00(0)0 reviews- Top Rated
Nani SwimwearUinta Base Layer Top - Women's
$39.83Save 50%compared to  $80.00(10)10 reviews with an average rating of 4.5 out of 5 stars
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Related Expert Advice articles
Whether you're working out, hitting the trail, or just enjoying a relaxing day, the perfect underwear is critical. We've rounded up our favorites!
What material is best?
Wool is moisture-wicking and odor-resistant, while synthetic fabrics are more durable and less expensive.
Match the temp to the trek
Lightweight layers are best for moderate to cool temperatures. Midweight layers are best for cold temperatures. Heavyweight layers are best for below-freezing temperatures.
Find your fit
To be able to wick sweat efficiently, your next-to-skin layer needs to actually be next to your skin. A comfortably snug fit everywhere is your goal.
Learn about clothes that can help you hike more comfortably, and get strategies for cutting the weight and bulk of clothing in your pack.
Your choice of underwear can have a big impact on your comfort while hiking. Learn what fabric, style, fit and features to look for.
Learn which clothes to bring backpacking in order to keep your pack light while making sure you'll have everything you need.
Learn the basics of layering clothing so you can stay comfortable outdoors. Find out how to use base layers, middle layers and outer layers to stay comfortable and active.