lining for all Shoei Hornet ADV models. Helmet size tight original size loose XS S, 17 mm S, 13 mm S, 9 mm S, 5 mm S S, 17 mm S, 13 mm S, 9 mm S, 5 mm M M, 13 mm M, 9 mm M, 5 mm L L, 13 mm L, 9 mm L, 5 mm XL L, 13 mm XL, 9 mm XL, 5 mm XXL L, 13 mm XL, 9 mm XL, 5 mm