You sit down straight. By 3 p.m., you're a shrimp at your desk.
It shows up in a photo someone takes of you, on a Zoom call, or when your partner tells you, again, to sit up. You straighten up, and ten minutes later you're folded over the keyboard. It was never you being lazy. Eight hours of screen, a chair and a phone pull your head and shoulders forward all day long, and willpower can't hold out against that from 9 to 5. What you need is something that holds the position with you, long enough for your body to learn it.

Your last brace pulled from your armpits. This one holds from your base.
A classic figure-8 brace pulls your shoulders back from your armpits, with nothing holding it lower down. All the pull ends up under your arms, so off it comes after twenty minutes, and into the drawer it goes. Here the straps cross on your back and anchor to a belt around your lower back. Like a tent you stake at the base before you pull it up. The pull is spread down your whole back, and your lower back is supported at the same time, in your desk chair or behind the wheel.

A coach, not a crutch
You don't wear it all day for the rest of your life. You put it on for your slouch hours, your calls, your drive, your evening scroll, 30 minutes a day to start, then up to an hour or two. It reminds your body what upright feels like, and your muscles do the holding. Little by little you catch yourself sitting tall without it. The next photo, you won't look for the slouch first. You have 30 days to feel the difference.
