Amazon.com: Swim Secure Tow Donut with Integrated Dry Bag High Swim Secure Tow Donut Orange or Pink Towables & Inflatables Tagged "Donut tube" Wakeupsports.com Swim Secure Tow Donut Tow Max Heavy Duty Car Tow Dolly Tow Better Dolly. Keep your belongings safe while you swim Small integrated dry bag ideal for valuables Dry bag contents accessible whilst swimming Lightweight little to no drag One way valves Size deflated 43cm x 35cm Belt Length 58cm to 108cm 23 to 42 The Swim Secure Tow Donut is a highly visible tow float swim buoy with waist strap and an integrated dry bag pouch. The small dry bag sits in the centre of the donut, out of the water, and is perfect for small items such as car keys and phone. The pouch can be opened on the water allowing you to access your drink, gels or phone so you can take that all important selfie! Recommended for all open water swimmers who want a high visibility tow float with the added reassurance that their valuables are safe. For added peace of mind we would recommend putting your phone into our phone bag before putting it in the Tow Donut.