A mid height Siren that airs it out while maintaining a strong show of support around the ankle. Secured by quick-pull narrow gauge lacing, both mesh upper and lining have flow-through breathability. Extended bumpers protect at toe and heel. Biomechanically efficient Q-Form Air Cushion midsole aligns and cushions each stride. Sticky rubber Vibram Siren sole features deeply incised peripheral gripping tread and lower profile interior tread for hold without overload. Slip lasted construction. Full Grain, synthetic leather and breathable mesh upper. Breathable mesh lining. TPU injection molded heel. 4.5mm anatomical footbed. Nylon 6.6 injection molded arch shank. Q-Form alignment system. Air Cushion midsole. Vibram Siren sole/sticky rubber.