Borrowing from its predecessor, the 2nd version of the GEL-Fit Sana™ shoe keeps the same fitness focused sole geometry with the addition of a FluidFit® printed upper. The MONO-SOCK® tongue features elastic bands that provide tension and support from heel to forefoot. The Rearfoot GEL® Cushioning System technology combines with the lightweight flexible midsole to provide excellent cushioning.Breaking a sweat has never been so comfortable. Weight: 5.4 oz. Heel Height: 17mm. Forefoot Height: 8mm.