Zappos.com is proud to offer the Reebok - RunTone Action W (Carbon/Pure Silver/Happy Pink/Black) - Footwear: Tone and strengthen key leg muscles while you run with the Reebok RunTone Action so you can make the most of every stride! ; Low-cut design offers added mobility. ; Combination synthetic leather/material and breathable mesh upper helps provide a comfortable fit and durability. ; SmoothFit technology creates a smooth comfortable fit with minimal potential irritation inside a light, flexible, streamlined upper. That's because all seams are either eliminated or sealed both inside and outside of the shoe. SmoothFit provides sock-like comfort you can feel. ; Removable PU sockliner provides extraordinary cushioning while accommodating orthotics. ; IMEVA midsole cushioning. ; Beveled heel construction for enhanced walking stride. ; RunTone technology for muscle activation, toning, strength, endurance. With RunTone, you tone and tighten your key leg muscles throughout your run. •Based on the EasyTone concept, RunTone is modified significantly to address the different needs of the running motion. These pods are 50% lower in profile than the EasyTone pods. •Eight balance pods with moving air create a unique softness with ever stride, forcing your muscles to work harder. •At heel-strike, air is compressed in the heel pods and forced out towards the forefoot- this air that exists in the pods cushion just like an air bag in a car. Some of the air at heel strike is also sent to the medial heel of the shoe to provide the lateral stability necessary in running. As the forefoot lands, the air is pushed back to the heel. The result is the micro-instability and softness needed for toning in a safe and comfortable running profile. •Provides more activation in key running muscles (calves, quads) with RunTone technology versus a traditional running shoe. •Reduces peak impact forces which reduces stress on the body. ; 10.00 oz. ; Product measurements were taken using size 5.5. Please note that measurements may vary by size.