Dynamic Fit technology delivers a one-to-one fit Engineered mesh upper offers lightweight ventilation Zoom Air units provide responsive cushioning Partial mesh bootie wraps the foot for a plush, comfortable fit. Notches at the tongue provide easy on and off Fitsole sockliner conforms to the shape of your foot to provide comfort and underfoot support Premium Cushlon ST foam provides soft and springy yet responsive cushioning with a supportive feel Rubber crash rail on the lateral outsole acts as a cushioning device at contact for a soft, smooth transition - the rubber is segmented to enhance flexibility Athletes: Melissa Bishop Weight: 9oz/255g (womens' size 8) Offset: 10mm (12mm forefoot, 22mm heel) Last: MR-10 The icon continues with a one-to-one fit. The iconic Women's Nike Air Zoom Pegasus 34 Women's Running Shoe continues with an updated, engineered upper, Zoom Air units and Cushlon foam to deliver responsive cushioning. Dynamic Flywire cables help secure a one-to-one fit so you can go the extra mile in comfort.