Newton Motion Stability Women's Running Shoes Mesh Synthetic Importado Action/ReactionTM Technology in the Midsole - Absorbs impact and adds responsiveness through the patented dynamic. Biomechanical Metatarsal Sensor Plate - Allows you to sense the ground better so you can stride more efficiently and with more stability. Dual-density Medial Posting - Provides support to the midfoot, preventing over pronation. ETC Antifriction and Antibacterial Technology - Within the sockliner, prevents rubbing against the heel and eliminates bacteria. Highly Breathable - Ventilation can circulate the feet, whilst closed mesh prevents debris for entering.