The Men's Patagonia R UPF Top is a rash guard crafted from light and fast-drying 85% recycled polyester and 15% spandex jersey that offers four-way stretch and 40+ UPF sun protection. Designed for performance and comfort in the water, it features a self-fabric crewneck, flatlock seams, and seamless underarms to provide chafe-free, next-to-skin comfort while paddling. A boardshorts connector at the center-front hem and a key loop add practical utility, and the close-to-body fit ensures maximum comfort and reduced drag.