Men39s nike sb koston max skateboarding shoe provides flexible support and lightweight impact absorption its breathable upper is designed to provide dynamic lockdown and flexibilityflexible mesh upper provides breathabilityexposed flywire cables deliver dynamic lockdownmax air unit under the heel for superb cushioninglow profile phylon midsole for lightweight cushioningdie cut eva foam sockliner provides additional cushioningdeep flex grooves enhance flexibility for natural motion