The ExOfficio Men’s Hyalite Long-Sleeve Shirt is designed with the adventurer in mind, combining the style you want and the performance you need. The quick-drying shirt is made with bluesign®-approved lightweight polyester fabric. Its UPF-50 rating protects from harmful UV rays so you can stay out longer. A zippered, mesh-lined gear pocket at the right side safely stows your keycard or credit cards. Forward-set shoulder and side seams keep you comfortable, and thumb loops at the cuffs keep your sleeves from riding up as you move.