plastic shoe parts 1.Air cushion,shoe upper,heel,outsole,insole,charms,etc. 2.Customer`s designs ... Insole (sport insole, EVA insole, gel insole, health insole) · Shank, heel, charms.• Other plastic parts: · Electronic accessories, · Fitness equipment accessories, ... do.• Plastic Mould: · Plastic injection mould, · Plastic blowing mould, · Copper mould. shock attenuation TPR heel pad for sport shoes