The UV blocking Sunday Afternoons Sun Tripper Hat is an urban styled performance cap, ideal for the playground, backyard, camping or vacation. Lightweight, breathable dobby nylon fabric. UPF 50 sun protection mesh vents not rated. Folding brim can be packed down small enough to fit into a back pocket. Slipstream mesh venting panels. Wicking sweatband keeps kids cool and dry in hot weather. Internal crown pocket. Size adjusting back hook loop fastener. Patent pending. Avg. wt. 2.6 oz. ChildM 19.5 21.25 YouthL 20.75 22.5 Import.