Water-resistant membrane on the upper helps keep water from entering the shoe's interior: Golf-specific upper supports a smoother swing: Improves stability. TPU heel cradle improves stability during your swing and when you're walking the course: Helps create smoother and more balanced movements. FLYTEFOAM PROPEL cushioning provides lightweight impact absorption: Improves flexibility. Rearfoot GEL technology cushioning provides good shock absorption: Improves impact absorption and creates a softer feeling at footstrike. Colour: blue