Smooth, breathable, two-color knit mesh upper locks down your foot & increases ventilation. Overlays add structure & midfoot lockdown without adding bulk. External heel counter adds structure & locks in the back of your foot. Antimicrobial treatment applied to minimize the risk of odor causing bacteria & infectious fungus. Full-length cushioned EVA midsole delivers the ultimate lightweight & responsive ride. Non-marking rubber outsole delivers greater traction with less weight.