Newton Running Womens BOCO at Synthetic-and-mesh Shaft measures approximately Low-Top" from arch Four-Lug Cushioning Technology in the Forefoot - Provides superior impact-zone protection. Closed Mesh Upper - Blocks out dirt and debris. Outsole - Employs multi-directional lugs to provide optimal grip on uneven terrain. Upper - Features a laser-perforated synthetic suede saddle for a midfoot-conforming fit. 3mm Drop from Heel to Toe - Provides a low profile and stable ride.