100% NylonSnap closure360Sun Protection Hat: This outdoor sun bucket boonie hat comes with a wide stiff oval to shade your face, neck, ears. It is 50+ UPF fishing hat for complete UV ray protectionSuper Wide Brim & Adjustable Size: The unique design of the outdoor sun hat offers wide brim, removable neck flaps, mesh face cover, adjustable drawcords & drawstrings for complete projection keeping your camp hat in place in any outdoor condition. Fit for head size 7 - 7 1/2 (22 - 24)Breathable Lightweight Quick Dry Sun Cap: Our summer fishing hat outdoor uv sun hat is about only 114g, very light and comfortable to wear. The breathable fabrics and the polyester mesh lining make this travel boonie hat particularly breathable. Quick drying fabric 100% Nylon is great for all types of outdoor activities, even if the outdoor hiking hat is wet with sweat or light rain, it will dry quicklyWindproof & Water Resistance: The back of the fishing hat is with durable adjusting buckle, Windproof design with adjustable chin strap ensures the hat stays put even in windy conditions. Water resistant material allows it to be used even in light rainy days. Provide good shading for regular daily use and outdoor activities especially like bush walking, fishing, hunting, golf, tennis, camping, outdoor research,baseball,cycling