describe- Fabric Composition: 100% Nylon Cap + Polyester Mesh. The mesh is not impregnated with products, it naturally protects you from mosquitoes and allows for good air circulation.- DOUBLE FUNCTIONALITY: The top of the hat has a hidden compartment in which the mesh sits for full mosquito protection. Just pull it up, adjust to the size of your head, and you can enjoy the outdoors without mosquitoes, flies and other insects. Mosquito repellent sun hat- UPF 50+ Sun Protection: With a 360° edge, it provides optimal protection against harmful UV rays, effectively protecting your skin from the sun.MULTIPLE USES: The protective cap protects your face from flying insects while working in the yard. It can also be used as an accessory for Halloween costumes.