Built for speed, endurance, and flexibility on the court, these shoes take your pickleball game to the next level. Details: FuelCell foam delivers a propulsive feel to help drive you forward NDure upper technology designed for superior durability Durable toe guard NDurance rubber outsole technology provides superior durability in high-wear areas to help get more out of the shoes Non-marking outsole405.15 grams (14.3 oz)Breathable mesh upperLightweight synthetic material