Features hydration is key in all disciplines but is often overlooked in open water due to the impracticalities this buoy allows you access to regular drink during long swims the body of the tow buoy is inflated to form a donut shape with pocket on top the specially designed hydration reservoir sits neatly into this pocket with an extension hose and bite valve for drinking the adjustable dual belt design attaches securely around the swimmers waist and the leash ensures that the product