The Groundbreaker Pull-On features a full grain leather foot with leather and nylon upper options, mesh lining, an extra comfort insole with higher rebound, a 90 degree heell, a safety toe, and a heavy duty oil- and slip-resisting Duratread™ outsole. Pull strap for easy on, easy off Full-grain leather foot with V-cut scallop Clarino™ shaft Two-row stitch pattern Mesh lining for breathability 4LR&trade® (Four Layer Rebound) technology offers support and cushioning for everyday wear 90° heel Lightweight shank Round toe