Cloudlift insoles for a supercushy, ultrasupportive fit Eco-friendly as we can make them. Cotton lining and rubber outsoles Fit is slightly narrow Leather upper. Do Well: leather sourced from a tannery that achieved a Gold Rating from the Leather Working Group (LWG), an organization that works to promote sustainable environmental practices in the leather industry. Lining is 65% recycled cotton/35% conventional cotton. Outsole is 40% man-made/35% recycled rubber/20% natural rubber/5% rice husks (aka the speckles). White laces