Which size?
The waistcoat is adapted to the size of the user and the level of buoyancy corresponds to their weight.
Size 40 / 60 kg
Size 60 / 80 kg
Size > 80 kg
You should choose your buoyancy jacket based on your weight, to make sure that you get good buoyancy, and the various adjustment systems will let you fit it to your body shape
How much does my life jacket weigh?
25-40 kg: 388 grams
40-60 kg: 644 grams
60-80 kg: 704 grams
+ 80 kg: 756 grams