This model gives light abdominal compression, not strong tightening, so the fit should feel supportive rather than restrictive. A good starting point: the belt should be snug enough to stay in place, but loose enough that you can take a full breath easily and the edges do not dig into your skin.
Size 4 is the larger format in this version, so do not choose it by habit — check the manufacturer's size chart against your waist or abdominal measurement. A belt that is too loose will slide and will not hold the midsection steadily; a belt that is too tight can feel restrictive and may interfere with normal breathing or circulation.
Practical checks when you put it on:
- You should be able to slip a flat hand between the belt and your abdomen with mild effort, without pushing hard.
- The rigid support ribs should sit flat, not bend, fold or press into one spot when you sit, bend or turn.
- Re-check the fit after moving from lying to standing — the belt often shifts with a change of position, and the pressure that felt correct at rest can become too loose or too tight once you are upright.
If you are using it after surgery or childbirth, let the doctor or physiotherapist who recommended it tell you how snug it should be. When in doubt, prefer a fit that feels stable but does not leave deep marks or make you want to undo it constantly.