The Kids' Patagonia Capilene Silkweight T-Shirt features a regular fit and is made from a stretchy blend of 84% recycled polyester and 16% spandex jersey that provides 40+ UPF sun protection. The smooth jersey fabric feels comfortable against the skin and layers easily, while flat-seam construction helps prevent chafing. This short-sleeved top includes forward-shoulder seams, set-in sleeves that reach the elbows, and underarm gussets to allow for better movement and comfort. A drop-tail hem adds extra coverage for active play and outdoor adventures.