Full grain leather upper for durable support and flexibility. Hydrator Collar Lining offers great step-in comfort and enhanced moisture wicking to keep you drier. Comfort ride insole is exceptionally breathable and anti-microbial for a healthier environment.HRC Strobel Board for increased cushioning. Heel ProGrid™ delivers shock absorption and helps promote smoother transitions. SSL EVA midsole promotes energy return and long-lasting wear, while minimizing overall weight. SRC Impact Zone supplies shock attenuation and sets the foot up for a smoother ride.HRC (High Rebound Compound) Forefoot Cushioning, an EVA/rubber creation provides cushion through the later stages of the gait cycle.Blown rubber outsole compound offers light cushioning for a smooth ride. XT-900 carbon rubber outsole supplies durability and off-road traction. Measurements:Weight: 13 ozProduct measurements were taken using size 8.5. Please note that measurements may vary by size.