The Ruby Fresh - Personal Tow Swim Buoy.
16 litre size.
Twin inflatable bladders, twin inflaters.
Internal space for personal items.
Adjustable strap down to child size.
No nasty sharp external seam.
The swim tow buoy is not designed as a life saving device. It is not a toy. It should only be used by competent swimmers as a visual aid to warn other open water users of your position.
Check the buoy before every swim for punctures and ensure it maintains inflation.
Enjoy your swim!