Ankle Support: Integrated Support System - Delivers an anatomical fit in ankle/tendon area * Boot Construction: SP10 Silver/Black nylon quarters with pro quarter stitching - Provides increased lateral stiffness and weight reduction without sacrificing fit. * Lining Material: Grey Duratex lining - Provides a comfortable, durable and professional lining * Runner: Proformance Profile Stainless steel runner - Yields the optimum combination of speed, agility and stability * Tongue: Asymmetrical tongue with felt, foam and binding - Provides a closer, more comfortable fit