Fully knit upper for a breathable, compression-like fit that delivers lightweight directional strength. 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