First off let me say I’ve worn pretty much every major brand paddle sport shirt or technical top made. Adidas, Nike, UA, Puma, Lacoste and so on. What separates the Stack Flowstate zip from the rest is the cut and form fit factor as well as the feel and breathable fabric used. The fit on the shirt doesn’t restrict your movement when attempting any and every shot in the game and the feel and comfort are second to none. Also the ventilation on the sides is a great touch. Also the styling is on point and looks sleek which makes this shirt my favorite yet.