ECCO Mens Biom Hydromax Hybrid Golf Shoes Remarkable Support & Comfort ECCO Mens Biom Hydromax Hybrid Golf Shoes features: Uppers constructed of Yak and hydromax leather Hyrdromax leather treated with Stain-Resistant Technology Triple component insole unit enhances cushion and performance Anatomical last with flexible midsole arch support Lightweight, dual-density TPU outsole for close-to-the-ground feel and traction Q-LOK System Lightweight, Yet Strong Outsole