Arena Classic Unisex Soft Silicone Swim Cap for Women and Men, Intensive Training and Racing Comfortable Non-Slip Long Hair Swimming Hat, Acid Lime/Silver – Hydrodynamic and comfortable swim cap that wont lose elasticity over time, designed for everyday training and swimming – Flat mold provides a stable fit that is smooth, soft and comfortable enough for long swim sessions; One size fits all – Made of PVC-free silicone which provides a smooth surface that streamlines the head for reduced drag and enhanced performance – Reinforced edge prevents the cap from riding up while the elastic silicone provides outstanding comfort and flexibility – Make your swim cap last even longer by washing it in non-chlorinated water after use and air drying it away from any heat sources or direct sunlight