FootJoy Men's D.N.A. BOA Spiked Golf Shoes, Close-Out, White/Black 53469 Full grain leather, Foam cushioning, TPU Outsole Synthetic sole ChromoSkin Leather System by Pittards: A Unique Full Grain Leather which is supple, lightweight, thin yet durable and completely waterproof with a superior feel and comfort level. SnugFit MicroVent Tongue: Soft & Thin Athletic Design with targeted ventilation zone for optimal fit & breathability 3D FoamCollar: 3D Foam molds to the Heel & Collar for Ideal support & custom fit NitroThin TPU Outsole: Streamlined Design, lightweight performance & enhanced stability. Lower profile delivers increased underfoot cushioning Boa + FJ Advantage - By integrating the Boa dial into the heel of the shoe , Boa and FJ designers were able to effectively develop a unique "down and back" fit that encompasses both the forefoot and heel. In action, the unique integration of the Boa Closure System has been credited by many FJ + Boa loyalists for providing a more stable heel fit