There are multiple sizes 10.5 & 11 women Cloudlift insoles for a supercushy, ultrasupportive fit that feels like walking on a... well, you know. They're also as eco-friendly as we can make them. The cotton canvas and rubber outsoles? Recycled. Oh, and the suede is sustainable too. Suede, leather upper. Outsole: 50% natural rubber/40% recycled rubber/10% rice husks. Lining and sock: 65% recycled cotton. 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.