I used these for handball practice once a week for about six months, and now they're too small. I've never used them outdoors. Please take a close look at the images. Retail price: ¥8,800 The following is quoted from the official NIKE website: These run small, so we recommend ordering a half size up from your usual size. Weight: Approximately 235g (for a 22.5cm shoe, one shoe) *There may be differences between the weight of the product you receive and the listed value. Weight varies depending on the size. During play, the IsoFly provides a bouncy, lightweight feel. It delivers durable traction to grip the ground firmly, whether on an outdoor playground or an indoor court. Enhanced cushioning underfoot and breathable materials in the upper provide comfortable support for running and jumping until it's time to go home or back to the classroom when the buzzer sounds. Color: White/Cool Grey/Wolf Grey/Metallic Gold Star Style: FN4384-100 Origin: Indonesia