The Heritage canvas upper is made of 68% jute, a fibre that relies on rainwater to grow. The remaining 32% is cotton. RMAT outsole: A premium rubber blend that provides softness, bounce, and durability. CloudBound™ removable and washable foam insoles for comfort and support throughout the day. Memory foam and moulded arch support. Elastic V gore for an easy fit. The outsole height is approximately 2 cm. As a certified B Corp™, we are proud to meet their standards of transparency, accountability, and social/environmental performance. Your purchase TOMS contributes to the education, health, and well-being of children, giving kids around the world the gift of a better future - better tomorrows.