Childs Mountain Bike Short Black MTB - Made in USA Child Sizes: S (8) M (10) L (12) XL (14) multi layer molded pad that is engineered specifically for children Protects from chafe and cushions the saddle area of a bicycle rider Chamois Pad is 4-5 mm thick with a 40 kg. thick densityChamois Pad is 4-5 mm thick with a 40 kg. thick density Aero Tech childs cargo includes this high end, Italian chamois pad that makes children more comfortable on their bicycle.