White Men's Underwear

The Best Men’s Underwear: Staff Picks

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!

REI Co-op Editors’ Choice Awards

REI Co-op Editors’ Choice Awards honor the best equipment and apparel we’ve been recommending for years, along with the latest innovative products.

How to Choose Hiking Underwear

Your choice of underwear can have a big impact on your comfort while hiking. Learn what fabric, style, fit and features to look for.

What to Wear Hiking

Learn about clothes that can help you hike more comfortably, and get strategies for cutting the weight and bulk of clothing in your pack.

How to Choose Base Layers

Choosing the right underwear (base layer) is essential—learn how moisture-wicking materials, fabric weight and fit affect comfort in the outdoors.

What to Wear Backpacking

Learn which clothes to bring backpacking in order to keep your pack light while making sure you'll have everything you need.