... quick release buckle4, comfortable inner sponge5, Adjustable head lock6, Custom design7, Size: S, M, L / size scale ... skating, bicycle.NOT FOR MOTORCYCLE.Sample Policy:1, Custom design sample lead time normally is 7days.2, ... on concrete helmet specification.Product range:Kid helmet, Adult helmet, skate helmet, canoeing helmet, kayak helmet, ski helmet, bicycle helmet, in-mold helmet.Factory capacity ...