Turtle Fur Men's Riverbed Fred, Lightweight Packable Tri-Fold Visor Ball Cap, Olive Size: Adult, One Size fits most. Also fits Juniors and Teens 100% Polyester with Mesh Side Panels UPF 50+ Sun Protection - Blocks 97% of UV Rays Tri-Fold Foldable Split Visor, Adjustable Elastic Back with Clasp, Pocket Packable Perfect for hiking, travel and other outdoor activities.