27cm Unused This high-cut design is the most frequently used marine boot/shoe throughout the year. It is made of 3mm thick neoprene with excellent elasticity. As there are no side zippers, water is less likely to enter, and the Velcro closure provides a good fit. To put them on: ① Fold down the ankle part. ② Insert your foot. ③ Extend the folded-down part back to its original position. This makes them easy to put on. These can be used as cold-weather shoes during seasons other than midsummer for activities such as canoeing, kayaking, SUP, rafting, fishing kayaks, yachting, and windsurfing.