• Chamaeleonid mesh upper• Color-shifting effect that changes color when viewed from different angles.• External molded TPU back counter• Helps increase support.• TRUSSTIC™ technology• This support unit helps to increase stability.• FF BLAST™ PLUS cushioning• This foam from our running collection has been re-tuned for everyday purposes. It's softer, bouncier, and lighter than standard cushioning materials.• GEL™ technology• Shock-attenuating material placed in the midsole of the shoe for cushioning and shock absorption.