Cariama IBIStone Grey Knit Low Lightweight Bamboo Sustainable Sneakers Size 11 Carima IBI are made from bamboo & recycled plastics from heel to toe. They are high performance, low impact and ultra lightweight. Wearing IBI, you’ll be lighter on your feet and leave behind a smaller footprint. Upper & Lining: Bamboo and rPET Insole: Cork + bio-based foam (from mamona oil) Outsole: Green EVA made from sugarcane Laces: Made with rPET In Excellent Condition!!!! They look better in person!!!