Full grain leather uppers offer outstanding comfort, breathability, and durability. * FootJoy warrants that this golf shoe will be waterproof in normal use for two years (U.S. Warranty) * PU (poly urethane) linings look and feel like leather and provide excellent fit and comfort. * A shoe construction technique often found in running shoes. This unique construction allows a shoe to be made without an insole board, producing a more contoured underfoot platform and vastly increased flexibility. * Slip last construction enables Contour Series shoes to feature contoured PU Fit-Beds that match the shape of the last and the midsole. This creates an underfoot base that more closely mimics the natural shape of the foot.