Patagonia Kid's Trucker Hat:Live Simply Crest: CameoPatagonia's mid crown trucker style hat is made from durable 100% organic cotton canvas. It has a polyester mesh back with vent holes that allow steam to escape when the action heats up. Moisture wicking headband for comfort. A large, pliable bill shades the eyes and nose, while adjustable tabs in back customize the fit. Made of organic cotton canvas with a polyester mesh back; Fair Trade Certified sewn Large bill provides sun protection Mesh fabric