Tread lightly on the beach and on the environment with the Ocean Minded Algae Flip Flops($40). The uppers are made of Tae Jin Eco water friendly synthetic nubuck, and they have recycled PET lining and toe-post. The foam midsole is made of molded anatomical 25% post-industrial recycled OM Foam. The rubber outsole is made of high traction 35% post-industrial recycled rubber outsole and everything is held together by water based adhesives.