This Durango boot is a full grain leather with a soft mesh lining inside and has the Durango X-Pand System which is a hidden gore expansion for universal fit and easy on off. This style contains a comfortable 7-layer outsole system. The first layer is the Triple X-treme comfort removable polyurethane footbed with memory foam for unparalleled comfort. Featuring a slip, oil and abrasion resistant rubber outsole that offers instant gratification.