This is the baselayer to wear when you're riding Jackson Hole in January. Soft, stretchy and compressible, Capilene 4 Expedition Weight offers the highest thermal performance in the Capilene family. Retooled to be warmer than our previous Capilene 4, it also breathes better and dries faster. Its smooth jersey face glides beneath layers and the soft, brushed fleece interior warms and wicks. With a deep zipper, snug-fitting collar, offset shoulder seams and yoke, tuckable hem length and a zipper garage with a draft flap to help block cold. Made with 5.9-oz Polartec Power Dry with Gladiodor odor control for the garment. Recyclable through the Common Threads Recycling Program.