Tula by Birkenstock Madrid Buckle Sandals in size 41 "With just one buckled strap, the Birkenstock Madrid is the simplest Birkenstock slide there is. The upper of the Madrid is made of Birko-Flor, so it's smooth and shiny, like leather. The Madrid is great for sliding into when you're headed out the door, or even for wearing around the house like slippers!" These shoes are in great condition they have minimal wear and the soles of the shoes are in great condition!