- Fabric composition: nylon cap + polyester mesh. The mesh fabric is not impregnated with product, naturally protecting you from mosquitoes and allowing good air circulation. - Features: Head measurement : 58-60cm. - Double function: The hat has a hidden compartment on the top with a mesh net that provides complete protection against mosquitoes. Simply remove it, adjust it to your head size and you're ready to enjoy the outdoors without mosquitoes, flies and other insects. Anti-Mosquito Sun Hat - UPF 50+ Sun Protection: Featuring a 360 brim, it provides optimal protection against harmful UV rays, effectively shielding your skin from the sun. Multiple uses: The protective hat protects your face from flying insects when working in the yard. It can also be used as a prop for Halloween costumes.