The Boo-Yah! is a 900 Global first, featuring our S20 Urethane coverstock. Matched with the High Rg / Low Diff symmetric Y-Core, you’ll be ready to slap out strikes like never before on shorter and drier conditions. The Boo-Yah! is one of two new releases in our new Tour Preferred Series, which focuses on providing competitive bowlers with the tools they need to succeed in tournament play.