Patagonia: Men's Capilene 1 T Shirt - Stay dry and cool in this silky baselayer ideal for high-exertion, hot-weather pursuits. Silky-soft Capilene® 1 is the lightest of all our technical baselayers. A master at managing moisture to keep you cool during active use in warm to sweltering conditions, it also helps protect from the sun and acts as an excellent quick-wicking baselayer beneath heftier Capilene®or wool insulation when the mercury plummets. Made from 100% post-consumer recycled (and 100% recyclable) Capilene® 1 polyester, with Gladiodor™ natural odor control.