The Kahuna III have a midsole air cushion which provides optimum comfort on longer walks and additional stability. Vibram outsole will provide great traction on uneven ground and give lasting durability, walk after walk.FeaturesComfortable walking sandal Antimicrobial - A Lycra neoprene lining keeps your feet fresh.Air Cushion in the midsole - This will absorb the shock of impact when walking.Vibram Outsole - A Vibram sole unit ensures you stay upright on testing terrain.Pig suede upper - A durable, long-lasting and extremely comfortable material.