G-Force Metal Cleats include Patented Optimal Athletic Positioning (OAP) Technology that will help you: Maximize Your Ground Reaction Force. Improve Your Kinetic Chain Efficiency. In additional to the insoles that come in the shoes there are also two extra pairs of insoles so that you can customize your OAP. The first extra pair of insoles increases your OAP by 1.5 mm and the second extra pair increases your OAP by 3.0 mm. Wt. 16 oz.