Tactile grip on shoulder for better control. Double concave geometry for better feel. Flat front geometry improves rebound control, balance and reduces weight. Reinforced polyurethane core for increased stiffness and puck control. Carbon and fiberglass reinforced outer wrap. Optimized stiffness for better rebound control.Low density foam for optimized balance and feel. P30- lie 15 mid heel closed curve, P20-Lie 13, heel open curve.Left