ASICS Men's GEL-Ace Golf Shoe 100% Leather Rubber sole P.H.F. (Personal Heel Fit): 2 layers of memory foam line the collar and mold to the athletes heel, creating a personalized fit Waterproof lining materials keep feet dry during inclement weather conditions Arch support sockliner is reinforced for added support and fatigue reduction Trusstic system reduces the weight of the sole unit while retaining the structural integrity of the shoe