The Columbia GRIXSEN™ BOOT WP features a watertight construction, delivering a high level of comfort and protection for your adventures. The shoes have water resistant leather upper with a soft pigskin collar. The EVA midsole couple with EVA strobel (material under the insole) and molded sockliner ensure excellent cushioning and comfort. A combination of rubber and EVA in the outsole creates a perfect blend of traction and reduced weight