6 mm heel-to-toe drop; 12 mm heel cushion; 6 mm forefoot cushion; shoe shaped to naturally activate the entire foot UniFly midsole disperses impact and stabilizes foot for a solid takeoff M Select Grip rubber outsole for durable traction that grips on changing terrain Circular lugs for animal-like agility on changing terrain Mesh and synthetic upper for breathability, support, and flexibility Breathable mesh lining treated with M Select Fresh to help control odor Protective toe cap for rougher terrain Reflective details for increased visibility in low-light conditions Merrell Omni-Fit lacing system provides a precise, glove-like fit Wash as needed in cold water, gentle cycle; air dry away from heat sources