Equipped with Omni-Shade technology, Columbias Backcast III Shorts boast a UPF rating of 50 to keep you safe from the suns harmful rays while you concentrate on water-side fun. The relaxed, classic fit is made of rugged, quick-drying 100% textured nylon poplin to take you in and out of the water comfortably. Features interior mesh briefs for structure. Back and side pocket, drawstring waist cord for a custom fit. Imported. Type: Shorts.