Waterproof Dry Bag --- The swimming buoy has a waterproof storage box which is separated from the inflatable air chamber. This way you can take valuables with you, such as phone, ID card, wallet, keys, etc. Adjustable Belt --- Adjustable buckle strap waist belt fits for different waist , easy to adjust the waist size you want, makes it the perfect swim accessory for anybody. Allows for the perfect fit over any swim clothing or wetsuit. Very suitable for lovers of swimming, snorkeling, triathlon, etc. PVC Material --- Swim Buoy is made of high quality eco-friendly PVC material, durable, not easy to cut, water-resistant, tear resistant and friction resistant. There is a strap on the swim buoy for your convenience. Swim Buoyancy Aid --- Once inflated it can comfortably support the weight of an adult. Plenty of air capacity buoyancy provides reassurance for swimming, you can grab the float in case you cramp up or simply need rest. Package included: 1 x Waterproof Dry Bag