The FLATSO 3.0 pushes the boundaries of USGA grip size limit regulations. The FLATSO 3.0 features our non-tapered technology, new patent pending pentagonal shape, and flat-top design. These characteristics inhibit wrist action and promote shoulder rotation for consistency in your putting stroke. With over 125 PGA Tour players having used SuperStroke technology, our patented grips help the world’s best play better every week. The proof: Over $50 million won on Tour. Non-taper technology allows for even pressure in both hands, eliminating added tension in the wrist and forearms. This helps the arms to swing free, further enhancing a pendulum putting stroke. Starting with a rubber under listing, we have added a new high-tech PU material, featuring CrossTraction technology, for improved feel and tackiness.