Vivo barefoot Gobi II Premium Leather Sneakers - Women's size EU 39 premium leather sand Excellent very gently used once condition. Barely any wear. This is our most natural style yet, constructed with 98% natural materials and a 100% natural outsole made in partnership with NFW. With its classic sneaker outline, innovative materials, and barefoot fit and feel, the Gobi Sneaker Premium redefines what it means to move as nature intended. It might look like a normal sneaker, but it's anything but. Made with 98% natural materials (even though the label says 93%!) the Gobi Sneaker Premium takes us one step closer to our supernatural mission of reaching 100% and creating fully biodegradable barefootwear.