Newton Motion III Women's Running Shoes - 8.5 - Pink Synthetic-and-mesh Action/ReactionTM Technology in the Midfoot and Heel - Absorbs impact and adds responsiveness through the patented dynamic movement system. Bio-Mechanical Metatarsal Sensor Plate - Allows you to better sense the ground underneath your feet for an enhanced run. P.O.P 1 Platform - A system of lugs that move when pressure is applied, activating the trampoline membrane of the shoe for enhanced efficiency. Semi-Flat Lightweight Laces - For a secure fit. Extended Medial Bridge (e.m.b.) - To the outsole to provide more functional support for runners requiring a greater surface area on the medial side due to pronation or a flatter arch.