Berghaus Men's Hillmaster II GTX&Acirc; Walking Boots Textile Upper: Pittards full grain leather memory foam in the collar and tongue Outsole: Vibram Hillmaster outsole with shock-absorbing PU midsole Lining: GORE-TEX performance comfort footwear Fabric lining: GORE-TEX Performance Comfort technology prevents water entry and allows moisture to escape, so your feet stay dry and comfortable Experience great walking performance with the Vibram XS Trek powered Hillmaster anti-clogging outsole and a shock-absorbing midsole