Monomaterial Wabi sandal made of 20% recycled TPU and 100% recyclable in red for men. PU removable footbed. A Little Better, Never Perfect. Our iconic Wabi slippers are inspired by Japanese minimalism and encourage us to focus on the now. Made with the idea of keeping components and production processes to a minimum, these men's slippers continue to redefine indoor comfort more than twenty years after their debut with soft cushioning and a cozy feel.