Fabric composition: 100% nylon fabric + polyester mesh. Non-soaked fabrics can act as natural mosquito repellents and maintain good air circulation. Fisherman's hat with hidden mesh protection, mosquitoes insects insects bees. Specifications: Head circumference: 57.91 -58.93; Cap Depth: 10.16; Sail: 33.98; Brim: 2.95 wide. Fits most helmets. Washing Tip: Hand wash below 86F. Dual Function: There is a net and a mesh compartment on the top of the hat, which hides the full head mosquito protection. Pull it up and adjust it to your head size, and you're ready to enjoy the outdoors without hating mosquitoes, flies, bugs, and bugs. Mosquito hat or sun hat! UPF50+ sun protection: 360 brim provides the best protection against harmful UV rays and effectively protects your skin from the sun. Perfect for anglers, hunters, hikers , campers or anyone who is outdoors in an environment full of fly insects.