This style is full grain leather with the Durango® X-Treme A.C.™ ventilated shaft with an air mesh lining inside and has the Durango® X-Pand System™ which is a hidden gore expansion for universal fit and easy on off the Durango® Easy Fit System™ which is a calf expansion for universal wider fit. This style contains a comfortable 7-layer outsole system. Made in China