PLAYER LEVEL: Designed for the entry level, occasional player. For frequent players, we recommend the Express Light Pickleball Shoe. Advanced players and players playing 6-7 days per week, the Pickleball Supreme Shoe is the recommended style UPPER: Leather K-EVA: Special formula EVA to provide maximized cushioning and enhance durability of the midsole AOSTA II RUBBER COMPOUND: High-density non-marking outsole provides unsurpassed durability from heel-to-toe ORTHOLITE SOCK LINER: keeps feet cool and minimizes the effects of perspiration