Winn Grips - The Best Grips in Golf The official site of Winn Grips, The best grips in golf. Winn Grips, played and endorsed by the number one golf coach in America, Butch Harmon, are made of a space age polymer material that is more slip resistant, shock absorbing and offers better feel than conventional rubber grips. with endorsedgolfgripsnumberofficialplayedsitewinn