This lightweight T-shirt is made with Deltapeak™ recycled polyester jersey fabric. The material pairs lightweight comfort with optimal breathability to keep you cool and fresh on intense summer treks and hikes. The Deltapeak™ technology is quick drying, preventing sweat buildup in high temperatures. And the fabric’s UPF 30+ rating means protection from the midday sun’s harmful UV rays. The material’s high-density construction also delivers reliable snag resistance when scrambling or wearing a backpack. For breathable comfort during hot hikes, there’s no better option than the men’s Outdoor 3 T-shirt.