ECCO Mens Biom G2 Hydromax Yak Leather Black Lime Punch Golf Shoe 130614/55846 Leather Through a special "tanned-in" process, we enhance natural leather to create our unique ECCO Hydromax leather This ensures our shoes remain soft and breathable, and your feet stay dry, even after repeated exposure to wet conditions. The ecoo Biom Hybrid 2 shoe boast many new features whilst still retaining the look and quality of the original. Sporty golf shoe with a smart design offering performance and comfort in all weather conditions Weather Resistance  Naturally soft, breathable and strong yak leather uppers are treated with HYDROMAX