Powered by Poron Performance technology, the new O FIT Insole Plus II Collection puts the foot on a pedestal (or a podium). How, you ask? By reducing step-shock, which improves stamina By providing high-energy return, which invigorates your step By offering Standard, Thermal, and Giveback options for anytime, all-weather comfort While O FIT Insoles come standard in every pair of Oboz, our trim-to-fit O FIT Insole Plus II upgrades just about any shoe for max stability, support, and comfort.