Springboost Men's B-Walk Nordic Walking Shoe 100% Leather DorsiFlextion Technology U control insole Program with two interchangeable insoles Energy Plate for increase range of motion and optimal use of energy 360 degree waterproof membrane from Emtex and 100% waterproof full grain leather and Keprotec by Schoeller Vibram Trek compound rubber outsole: waterproof and excellent grip and traction for walking activities