●Safety for US standard/Mountalk ski helmets comply with ASTM F2040 safety standards. ●Solid and comfortable, our helmet features a high-impact ABS shell and a shock-absorbing EPS core ●Comfortable and washable pads / soft velvet pads completely wraps your head to keep you warm, all inner pads and ear pads are removable and washable. ●Great design/deep "V" shaped ear pads provide enough space for your ears to get a snug fit for a long time. ●Size adjustable: we offer 2 sizes for adults and teenagers, and you can adjust the size by the adjustable ring.