Patagonia packed the easy feel of summer into this soft, versatile T-shirt. It’s made of Merino Daily, their regular fit, everyday Merino baselayer for all-day comfort and easy care. Merino wool is naturally breathable, regulates body temperature and stretches. It's also wonderfully soft and naturally resists odor. Their fine merino wool is from the grasslands of Patagonia. They slow wash it for softness and shrink resistance, without the use of chlorine, then blend it with 48% Capilene® polyester (100% recycled) for durability, quick dry times and moisture transfer superior to that of 100% merino. Features include a self-fabric collar for chafe-free comfort and full underarm gussets for unhindered shoulder mobility.