The M92 Bold: where sustainability and effortlessness collide. Combining corn vegan napa and soft bamboo lining , the M92 is both a fashionable and environmentally friendly sneaker. Unisex chunky retro sneakers. Made with corn vegan napa. Interior: 6 0% bamboo 40% Recycled PET . Insoles crafted with recycled Polyurethane (leftover waste from a mattress factory). We fund the growth of two trees for each pair of sneakers sold. Ethically made in Portugal. Our packaging is 100% biodegradable.