SKU 9565191 Leather sourced from a tannery that achieved a Silver Rating from the Leather Working Group (LWG). With classic in its name, and updated with modern fashion and technology, the Jibs Classic will certainly become your new favorite pair of flexible slip-on shoes with its sustainable odor free natural cork and biodegradable perforated leather. The Jibs Classic fits large, most customers order a full size smaller than their usual sneakers. Great for lightweight travel and all-day walking adventures. Handmade for the highest quality. Perforated biodegradable leather upper. Memory foam natural cork insole. Traction rubber outsole. Made in Brazil. This product is considered "sustainable" because it's been certified by one or more industry certifying organization for meeting at least one industry standard for environmental or socioeconomic impact. Unisex sizing for Women and Men. Weight of footwear is based on a single item, not a pair. View Zappos.com Glossary of Terms Jibs Classic Slip-On Sneaker