Interchangeable Soles - Comes With DIN Sole, Tech Compatible Soles Available * Quick Instep - Co-Molded Soft Plastic At The Instep Area For Easy Entry And Exit * I-Rebound Flex Management System - Increased Rebound Power Improves Response And Efficiency * Arch Grip Insert - Traction For Hiking And Snowmobiling * Rubber Tecni-Grip Heel - Better Traction Walking/Hiking