Review on 🏊 15L IDRYBAG Safety Swim Buoy Adult Tow Float - Ideal for Triathletes Training in Open Water. Inflatable Float buoy for Safe Swimming, Kayaking, Boating, Canoeing, Rafting, Surfing, Fishing, and Floating. by Los Bizness

It's a rather big buoy, so if you're more into fast, competitive training you might want to look for a smaller one. You can store quite a bit in it (most I did was 1l water bottle, flip flops, phone, small bottle of sunscreen a shirt and a small camping towel.) but electronics definitely have to go in a real dry bag as the storage compartment IS NOT WATERPROOF!The straps is rather long, which I like, since if comes handy when resting on the buoy from time to time.