Men's Tuba II Herringbone sneaker – certified organic cotton and linen blend and eco-certified nubuck (BLC/ISO14001 certification) uppers with a herringbone pattern. Certified organic cotton shoe laces. Pinstripe print certified organic cotton and recycled PET blend linings and footbed The "pedbed" (the cushiony and supportive stuff at the bottom of the shoe) is made of EVA with BIO-D to make it biodegradable and latex foam for comfort. Partially recycled shoe – the bottom of this shoe is made from a blend of 40% recycled car tires and 60% natural rubber. The foot form inserts are made of post consumer recycled paper. The shoebox is made of post-consumer recycled paper, soy based printing ink, natural latex and starch based cements.