The Outdoor Research Bug Net Cap is your go to hat for simple, effective protection from biting insects. The built in, bug proof, no see um netting keeps mosquitos, flies and other flying pests at bay, and can be stashed in a pocket at back of the cap when not in use, or completely removed. A drawcord closure secures the bottom of the netting under your chin, to keep bugs out. Breathable, 100% Supplex nylon plain weave main shell with 100% nylon no see um mesh netting. UPF 50 sun protection. Wicking TransAction headband. No see um mesh keeps bugs away from the face. Netting pulls up over brim when not in use stuff inside center back pocket or remove it completely. Drawcord closure at the bottom seals netting. One size. Avg. wt. 2.6. oz.