You collect 1 kilogram of plastic from the ocean in collaboration with the NGO "Waste Free Oceans". All our sneakers are 100% vegan, since the foundation of flamingos in 2015. > Upper material made from 68% corn waste and 32% cotton. > External pieces in recycled mesh, material made from plastic litter collected from the ocean. > Removable insole made with cork and natural rubber. > Organic cotton laces. > Made in Spain, Elche. If you are between two sizes, choose the biggest.