XS (6 3/8" - 6 5/8"), Small (6 5/8" - 7"), Medium (7" - 7 1/4"), Large (7 3/8" - 7 5/8") Tested and approved by players at every level of the game, the stock option PTS20 is our best-selling on-field performance cap. Featuring Pulse fabric with Stay-Dri technology for the ultimate in comfort and breathability, and a shapeable U-Form bill for the perfect custom curve.