Unbeatable UPF 50+ sun protection and incredible lightness so you can stick move after move without worry of exposure. Whether you're jamming your way up a granite big wall, scrambling your favorite ridgeline, or trekking through the desert in search of splitters, the UPF Long Sleeve shields you from sizzling rays with its superlight stretch-woven fabric, and keeps you cool thanks to strategically placed mesh panels. Fabric: Tech Trail Stretch Plain Weave 100% Polyester