Newton Running Womens MV3 Synthetic-and-mesh Shaft measures approximately Low-Top" from arch Ultra-Light, Highly Breathable, Fast-Drying Mesh - Allows air to flow near the foot, keeping you cool and comfortable. Seamless Anatomical Support Strapping - Provides comfortable support and a snug fit. TPU Toe Cap with More Generous Toebox - For greater stability. High-Traction 5-Lug Midfoot Pattern - Anatomical lugs ensure greater efficiency and allow the foot to flex better. High-Density Rubber in Heel and Toe - Provides durability.