Multi directional groove to lock your feet into position.
Saber Arch - Larger, squarer shaped arch designed to firmly lock your foot between the arch and the kick.
Block Wedge - Steeper more compact wedge to lock your foot in place Tapered at the rails to minimize water drag.
Diamond 3 Groove - An evolution of the Diamond 2, the Diamond 3 features a more spaced out groove pattern allowing your feet to stick down and lock into the grip. The groove is also more aggressive with more angular shapes and multiple levels.