Newly updated with added cushioning and a sleeker upper, the Revel 6 delivers on-the-run performance with a springy, responsive ride plus all-day style that???ll see you through the rest of your day. Refreshed, versatile upper.Updated Fit Knit construction offers a sleeker look and feel, plus structure and breathability. Redesigned knit upper is sleeker than before.Springy, comfortable rideReengineered midsole has more of our adaptable DNA for a comfortable feel, and works with the Green Rubber outsole ??? made from environmentally friendly silica ??? to deliver a springy, responsive ride. We added 2mm of lightweight DNA in the heel for increased cushioningQuick transitionsThe arrow-point pattern in the outsole lets your foot move quickly from heel to toe.