20% net profits from your green Bangs are invested with our partner, S.O.U.L. Foundation (S.O.U.L.). S.O.U.L. is a grassroots organization that partners with local communities to implement development strategies in Uganda focusing on education and empowering people to develop themselves and their own communities. BANGS are made of a canvas upper, rubber outsole, and a canvas interior. BANGS run about a half-size big. Depending on whether or not you wear big socks, we recommend ordering a half-size down from your normal size.