J crew long sleeved rash guard size L, rust color. Every style is crafted from recycled materials and features UPF 50 sun protection, aka sunscreen for fabric. Featuring a comfortable, close fit, this long-sleeve rash guard is crafted from a special fabric that incorporates recycled nylon. Full coverage for A-B cup sizes. Unlined. 82% recycled nylon/18% elastane. 92% polyester/8% elastane Repreve® lining. Built-in UPF 50 sun protection (recommended by the Skin Cancer Foundation as an effective UV protectant, in addition to SPF).