The Patagonia Capilene 1 Tee Shirt for men is a silky baselayer ideal that will help you stay cool and dry -- perfect for high-exertion, hot-weather pursuits. Take it out for a trail run, mountain bike ride or hot-weather bouldering session. Quick to wick and fast to dry, this t-shirt provides protection from the sun and also wears well beneath outer layers on cooler days. Its rib-knit collar gives the shirt a classic crew look.