1972361 prAna Men's Lost Sol LS Shirt This button-up is made for exploring the outdoors. To stay comfortable, the fabric is moisture-wicking with a mesh vent in the back. There's an interior stash pocket to stay hands-free on the trail. Double chest patch pockets with flaps and button closure Mesh lined venting at back yoke Interior side seam stash pocket Faux corozo buttons Stretch Moisture-wicking finish Exterior prAna woven label at bottom front hem UPF 50+ Recycled Content bluesign approved materials Fair Trade Certified Factory Fabric Recycled Polyester Heather Woven 100% Recycled Polyester