Barracuda bio slipper made of zebra print synthetic material. Adjustable with buckle on the strap. Anatomic sole made of soft cork covered with beige synthetic fur. TR recycled rubber and cork sole with white waves. This product is #ecofriendly #animalfree and suitable for vegans. Upper material: Synthetic Insole: Synthetic Sole: TR and recycled cork shavings. * Approved by PETA vegans. The insole we use to make the slipper is anatomical, being a little softer than other types of footwear. If you are hesitating between two sizes, we recommend that you choose the smaller one.