Kep Italia Narrow Helmet LinerThe inner lining of KEP Italia helmets corresponds to the individual size of the rider. There are 12 linings sizes, of which the first eight (from 51 to 58) fit helmets size M (medium), whilst the remaining four (from 59 to 62) fit helmets size L (large). The inner lining is a very important part of the helmet, as the correct fit on the head of the rider depends on it being of the right thickness. KEP Italia's inner lining comes in one piece and is