Turtle Fur Sun Shell UV Cady, Ultra Lightweight Performance Cadet Cap, Day Z Size: Adult, One Size fits most. Also fits Juniors and Teens Sun Shell Ultra Lightweight Breathable Performance Fabric - 84% Recycled Polyester UPF 50+ Sun Protection - Blocks 97% of UV Rays Quick Drying Performance Cap Perfect for mountain biking, cycling, hiking, kayaking, climbing, running, fishing, SUPing, backpacking, travel, yoga, and many more outdoor adventures.