Mahogany Full Grain/Suede Exclusive XC Flex™ construction combines revolutionary comfort and flexibility with heritage styling and hand-finished details. Richly burnished, hand-finished full-grain leather and suede. Inside zipper for on/off ease. Sheepskin/moisture-wicking textile lining. Removable EVA insole with memory-foam cushioning. XC Flex™ midsole for shock-absorption and flexibility. Rubber lug sole.