Patagonia Capilene Lightweight Zip-Neck Baselayer Product Description Patagonia's Capilene Lightweight Zip-Neck Baselayer is the perfect choice for high-octane activities on chilly days. It is crafted with 100% recycled polyester for quick drying and moisture wicking property. This baselayer is constructed with the Polygiene® technology for a fresh interior. It has a self-fabric collar with an internal neck tape for comfort, and a locker loop for hang-drying. This baselayer is equipped with flatlock seams, offset shoulder seams, a drop tail, and a full underarm gusset that encourages a wide range of motion.