These aren't your average flip flops. The soles of these Indosole Flip-Flops are made from recycled tires. Designed to maximize style while keeping the aesthetics minimal, these flip flops offer a cushioned footbed with sturdy straps and toe thongs for an effortless stride. The extra grip outsoles also allow you to enjoy walking wherever your heart desires without having to think twice about it. Product Details: Recycled Tire Soles Natural Rubber Footbed with Arch Support Waterproof Comfortable ENVRO FBR Strap Lined with Microfiber Light and Flexible at Approx. 284g (10oz) Made Responsibly (No animals or fuel-powered machinery used) Men's Size Chart US EU SA/UK MM 7-8 39/40 6-7 262 9 41/42 8 278 10-11 43/44 9-10 291 12 45/46 11 300 13-14 47/48 12-13 314