Merino Wool Men's Running Accessories

Find the best running shorts for any activity. From trail runs to marathons, we've rounded up our favorites, based on input from REI Co-op staff.

Running is more comfortable with the right clothing. This article highlights fabrics and features for warm weather and winter running.

Discover our list of the 6 best gaiters at the co-op, including over-the-ankle options and knee-high options for hiking, running and mountaineering.

Gaiters come in different shapes and sizes. Learn how to choose and use gaiters for hiking, mountaineering and trail running.

Learn how to choose and use a heart rate monitor to track HR target zones for training, weight-loss and overall cardiovascular fitness.

Our gear testers choose their 7 favorite trekking poles (and a staff) for hiking, mountaineering, trail running and more at REI.