Details These comfy, retro-inspired vegan sneakers are made from corn waste, bamboo, organic cotton, and natural rubber. Even cooler: for each pair of Classic 70&';s purchased, Flamingos Life plants 5 trees with the NGO Eden Reforestation Projects. Uppers made from corn Inner lining made from bamboo Sole made with natural and recycled rubber Removable insole made with cork Spot clean If you are between two sizes, choose the smaller size. These tend to run a bit large. Order one size smaller than usual. Made responsibly in Spain