Panegy Outdoor Sport Baseball Cap UPF 50+ Sun Protection Tripper Hat microfiber Breathable and lightweight dacron,quick dry and UV protect:UPF 50+ Tripper cap can be folded when not use, convenient and portable Lightweight / quick-dry / fadeless / wear-resistance / windproof Free size, can be adjusted according to your head circumference Suitable for camping, fishing, cycling and other outdoor activities