If you’re looking for a swim aid that will not only keep you visible and secure in the open water, but also store your valuables safely while you’re out there. Orca Orange Safety Buoy is a remade version of the original High Visiblity Safety Buoy for Triathletes like you.
Note: this buoy IS NOT a life saving device. Open water swimming is a dangerous sport. Never swim by yourself, always have a buddy swimmer with you or swim in a group.