Lightweight. Breathable. Stretchy UPF 30-50 Protection

Named after the legendary route in Yosemite Valley. the Astroman S/S Sun Shirt features our best-selling lightweight. stretchy. and durable Astroman fabric for long days on the wall. hiking. paddling. and backpacking.AirVent technology on the back yoke allows superb airflow and breathability. and built-in UPF 30-50 sun protection protects skin from harmful UV rays. The Astroman's lightweight. quick-drying fabric is soft next to the skin and delivers the durability required for active outdoor pursuits.For sunny day outdoor activities where staying shaded and cool is critical. the Astroman S/S Sun Shirt is an elite performance top.