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- SmartwoolSparod Crew Sweater - Men's$51.77Save 50%compared to $105.00REI Outlet(47)47 reviews with an average rating of 4.2 out of 5 stars
- SmartwoolActive Fleece Wind Half-Zip - Men's$130.73Save 25%compared to $175.00REI Outlet(0)0 reviews
- SmartwoolActive T-Shirt - Men's$49.97Save 33%compared to $75.00REI Outlet(3)3 reviews with an average rating of 4.7 out of 5 stars
- Free CountryExpedition Nylon Ripstop Long-Sleeve Shirt - Men's$39.87Save 50%compared to $80.00REI Outlet(14)14 reviews with an average rating of 4.0 out of 5 stars
- Mountain HardwearTrail Sender Long-Sleeve Shirt - Men's$66.73Save 25%compared to $90.00REI OutletTop Rated(21)21 reviews with an average rating of 4.6 out of 5 stars
- MarmotFairfax Novelty Lightweight Flannel Shirt - Men's$39.77Save 50%compared to $80.00REI OutletTop Rated(26)26 reviews with an average rating of 4.5 out of 5 stars
631–637 of 637 products
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Related Expert Advice articles
Which material is best?
- Wool: highly moisture-wicking and odor-resistant
- Synthetic: durable and less expensive
- Silk: soft and lightweight for casual activities
Match the temp to the trek
- Lightweight layers: best for moderate to cool temperatures
- Midweight layers: best for cold temperatures
- Heavyweight layers: best for below-freezing temperatures
Find your fit
- Must be close to skin to efficiently wick sweat; should fit comfortably snug
- Base layer is for moisture control; your mid layer is for warmth
Running is more comfortable with the right clothing. This article highlights fabrics and features for warm weather and winter running.
Learn which clothes to bring backpacking in order to keep your pack light while making sure you'll have everything you need.
Fabrics
- Synthetic: moisture-wicking, quick drying, durable, but can hold on to odor
- Wool: moisture-wicking, odor-resistant, cooling in warm weather, can be less durable
Styles
- Bikini: less rear coverage, thinner waistband, higher-cut leg
- Briefs (women's): full-cut briefs offer more coverage in front and back; hipsters offer medium front coverage and back with higher rise
Briefs (men's): close fit and good support, but less thigh coverage
- Boxer brief or boy shorts: snug fit, good coverage, longer cut extends down to the upper thigh
- Boxers: looser fit, added coverage can prevent chafing but prone to bunching
- Thongs: lightweight and quick-drying but provide the least coverage
- Sports bras: compression and support during high-output activities like hiking and running
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.
Learn how to compare fabrics and choose travel clothing that dries fast, resists wrinkles and provides sun, rain or insect protection.





















