Royal Robbins Men's Desert Pucker Short Sleeve Shirt 80% Modal, 20% Polyester Imported Relaxed Fit; Material: 80% Modal, 20% Polyester; Made with eco-conscious Modal fibers Sun protection UPF 27 plus; The ultimate in comfort soft, wrinkle resistance, quick dry, and great drape Drop-in chest pocket with pen slot; 5 oz. Straight hem with side vents for easy, untucked styling Sourced from sustainably-managed beechwood pulp the Desert Pucker is an easy-care, eco-conscious Modal blend; ideal for travel and outdoor activities