The adidas Stan Smith shoes are no stranger to evolution. And while this pair may look almost exactly the same as the ones that stepped onto the tennis court over 50 years ago, there's one big difference: These Stan Smiths are made with recycled materials. All the iconic details are still there — from the signature perforated 3-Stripes to the Stan Smith tongue label. They're also still incredibly comfortable, thanks to the cushioned midsole.