The Men's D-Solve Shoe reflects Simple's commitment to producing shoes that are sustainable through-and-through, yet also damn comfortable and good-looking. Materials include organic cotton uppers and laces, eco-certified suede, a pedbed of comfy polyurethane and recycled rubber, and a sole made of recycled rubber and EVA that's been infused with a biodegradable additive that makes it biodegradable in a landfill (D-Solve, get it). Then again, you may simply enjoy the D-Solve's comfort and good looks as you tool about town on your bike.