SUPER HIGH MOI SLOPED CROWN
The HL4 driver features an all new sloped crown design that is deeper from face to back. No skirt where the sole plate meets the crown equates to a 12% increase in MOI over the previous Hot Launch drivers. This new design makes for an extremely high Moment of Inertia above 5000 grams per cubic centimeter. Moment of Inertia is a measure of a body’s resistance to angular acceleration or twisting, meaning that the HL4 is a more stable driver. This higher MOI will increase ball speed on miss-hits and will keep shots straighter.