Used once, but I no longer need it. Perfect for anyone heading to the beach! Great for rocky areas, preventing foot pain and slipping thanks to the non-slip soles. You can snorkel with these on. They also have adjustable laces to keep them secure. Size: M I usually wear a 24.5cm shoe size. Will be shipped compressed. Please note: I have rinsed off the salt and home-cleaned them after the single use. Beach activities Snorkeling Clamming