Unique Tourna Grip, XXL, Original Dry Feel Tennis Grips (30/Roll Pack) by Unique. $38.18. Tourna-Grip Original XXL: This is the original overgrip used by professionals including Pete Sampras, James Blake, the Bryan Brothers, Sam Querrey, David Ferrer, John Isner, and many more. It’s used by more pro and college players than all other grips combined. Why? Because Tourna-Grip actually performs better with moisture when all other overgrips on the market get slippery with moisture.