This pair of shoes is vegan. Upper from C.W.L. (Bio-cotton coated with resin from corn & castor oil). Panele made from C.W.L .. Logo V from rubber and rice waste (22%). 100 % organic cotton laces. Interior lining soft (33% organic cotton & 67% recycled polyester). Insole made of sugar cane (40%), organic cotton (12%), amazonary rubber (11%) & recycled ethylene vinyl acetate (11%). 59%biologically produced and recycled running sole: from amazony rubber (24%), rice waste (23%) & recycled rubber (12%). Made in Brazil, in the region of Porto Alegre. C.W.L. Is an innovative vegan alternative for leather and comes from organic cultivation from an Italian special company. The special thing about it is that it is made of cotton that is made with a vegetable P.U. Is coated. This P.U. 50% of corn waste from the food industry and 50% of ordinary P.U.