DESC: Natural and re-purposed materials come together handsomely in Simple's Trekker Lo shoe. Its upper consists of soft, rich leather that's BLC-certified and features cool, breathable linings and generous cushioning inside. Latex rubber, recycled tires, recycled EVA, and little flecks of cork form the out- and midsole, bringing both comfort and eco-friendliness to every step. The bottom of these shoes used to be tires that rolled around on an axle that was connected to a car. Given the inherent nature of use like this, some of the shoe bottoms (i.e. tires) are marked up a little. Sure, we buff them out and put them on the bottom of the shoes, but they still show wear. If you get them and you decide you can't deal with the past life of that particular car tire, we'll take them back, as long as they are in new and unworn condition.