REI Co-op Polartec Power Stretch Men's Running Clothes

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

Synthetic or merino wool socks have subtle differences depending on their intended activity. We'll explain sock fit, features and fabrics.

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