Great and Beautiful UV protective finished,Light weight extremely durable | Well vented all purpose product for summer or winter riding Main | Sleek modular design,Flip up modular helmets | Helmet Size: Small(19.15 / 19.506 Inch), Medium(20.10 / 20.45 Inch), Large(20.87 / 21.26 Inch), XL(=Adult S):21.65 / 22.50 Inch | Package Included: 1 x Helmet,1 x Helmet Bag,1 x Goggles, x Pair Gloves