About the product - 【【Safty and comfortable】 Cotton material,100% Brand New 【FULL PROTECTION】Dustproof and waterproof, it can be used for outdoors 【PROTECTIVE HAT DESIGN】Transparent cover design with wide view 【COMFORTABLE & FOR CHILDREN】Soft and flexible cotton material makes this comfortable to wear 【DUAL FUNCTIONALITY】Stop or reduce too much dust into your Respiratory tract, safety and comfortable perspective while protecting your eyesight Color --------------Yellow/Pink/Blue/Orange ( There are many colors to choose from, and there is always one that suits you) Head Circumference: ------------------- 44yards:15.7''~17.3''( fit 0 to 6 months) 46yards:17.3''~18.1''( fit 6 to 12months) 48yards:18.1''~18.9''( fit 1 to 2 years old) 50yards:18.9''~19.7''(fit 2 to 3years old) Package: ------------------- 1 * Hat + 1 * transparent cover Tips ------------------- Using the Size Chart as a reference Please allow 0.39-1.18inch differs due to manual measurement