New condition! Lightweight Made from recycled and bio-based materials Upper: The durable, knitted material is 80% recycled PET (4 recycled plastic bottles) and 20% PU. Knitting the material ensures less waste, as it is constructed to shape and there are no off-cuts. The knit it also highly breathable. Insole: 100% natural cork, algae from BloomFoam, and EVA make a perfect sustainable combo for maximum comfort. Removable. Outsole: Natural algae and EVA bring lightness & cushioning, while rubber reinforcements ensure maximum durability. Laces: 100% Organic Cotton