The Chukkas spring you into action through their IBR outsole, which also keeps them unbelievably lightweight AND flexible. And because they&';re zero-drop, your feet will be able to keep going long after you&';ve tapped out. These mother Chukkas also come standard with a wide toe box which gives your little piggies all the room they need to feel free. Features Last: Lems WIDE Natural-Shape(TM) Last Upper: 1.6mm ultra-soft suede Lining: 90% polyester + 10% spandex Outsole: 9.0mm LemsRubber(TM) (air-injection rubber) Footbed: 3.5mm removable moisture wicking PU insole Stack Height: 10.0mm (not including 3.0mm insole) Drop: 0.0mm (Zero-Drop) Weight: 9.6oz/272g (size W8) Care & Treatment: Nikwax For additional information please check out our FAQ page!