EI Cap offers warmth with a light touch: Nonbulky, 6-oz. double-faced Capilene polyester fleece is soft and moisturewicking. It's indispensable as a base or mid layer in cold conditions, and also makes an excellent outerwear piece. EI Cap Pants can be viewed online at www. patagonia. com. Made in USA. M's El Cap 1/4-Zip