Thank you for viewing. This is a SURFGRIP Water Seal Band 1mm. This 1mm smooth rubber ankle band is highly effective in significantly reducing water ingress into your boots. The band's width and thickness are designed for maximum comfort during wear, at 1mm, it's thin and has minimal impact on your wetsuit. The smooth skin material on the skin-facing side reduces snagging on body hair, allowing for stress-free and smooth on and off. Size: Free Size Purchase Price: ¥1500 Condition: Brand new, unused. If you have any questions, please feel free to comment and I will respond.