Turtle Fur - Super Visor, Lightweight Pocket Packable Adjustable Cotton Visor, Mermaid Size One Size Size: Adult, One Size fits most. Also fits Juniors and Teens 100% Cotton with Coordinating Patterned Fabric Lining and Under Brim UPF 50+ Sun Protection - Blocks 97% of UV Rays Adjustable velcro back Perfect for beachgoing, hiking, travel and other outdoor activities.