Engineered mesh upper is lightweight & breathable. Firm external heel counter for additional support that keeps the back of the foot locked in place. Molded Comfort Collar locks in the heel with a soft, plush feel for zero distractions. Full-length molded sockliner forms to the foot, eliminating slippage & providing ideal underfoot comfort. Charged Cushioning midsole is firmer in the heel & softer in the forefoot for support & comfort. TPU midsole shank for added stability & support. Rubber outsole provides full ground contact with deep flex grooves for flexibility where you need it. High-abrasion rubber added to heavy wear areas of the sole to increase durability