Harken Men's Eco Shorts 50% Nylon, 40% rayon derived from bamboo, 10% Charcoal Imported Fabric Type: 50% Nylon, 40% rayon derived from bamboo, 10% Charcoal; Import Designation: Imported UPF rating 50 plus, Fabric wicks away moisture Soft, temperature- regulating brushed interior Two extra- deep hand pockets, leg pocket and two back pockets UPF rating 50 plus Naturally anti-microbial bamboo charcoal fabric wicks away moisture Soft, temperature- regulating brushed interior Two extra- deep hand pockets, leg pocket and two back pockets