Kizik Madrid Eco Knit Blackout Sneakers Size US Mens 11 Womens 12.5 Blackout Comfort + sustainability? Yeah, we did that! The Madrid is fashioned with an environmentally friendly knit upper made from 100% recycled plastic bottles. It's got a four-way stretch that makes it breathable (goodbye, sweaty feet!) We call it Eco-Knit. You'll call it your new favorite shoe. New, box not included ; may have been on a sales floor and could have been tried on, just like what you find when you shop at a retail store. They can show signs of handling. -item sold as featured in the pictures! B42