The Seac Speed Snorkelling Fins are a new, high-quality product designed for water sports enthusiasts. These unisex closed slipper fins come in both size Medium and Large, making them versatile for a wide range of users. The sleek blue color and lightweight design make them both stylish and easy to use while snorkelling or swimming. These fins offer a comfortable fit and efficient propulsion through the water, making them a must-have for any water sports enthusiast. I have a size Large and a size Medium. Large ones have never been used , Medium were used one time but are in new condition.