Uv Skinz Boys' 3-piece Swim Set, UPF 50+ Sun Protection Top: 87% polyester | 13% elastane Short: 100% polyester Hat Shell and Lining: 100% polyester Importado Quick-drying Microfiber with UPF 50+ Sun Protection Board Short Features: Mesh Lining, Elastic Waist and Working Velcro/Drawstring Front Closure Top Features: Flat Lock Seams for Ease and Comfort