Replying to Booster straps

For anyone who has booster straps / has used them, do yours get progressively more loose during the day?

Many times during the day, I have to reach down and pull them tighter, the buckle just lets it slide like an inch.

Or any tips on how to mitigate this?

edit: i ski mostly park, not racing

**This thread was edited on Feb 26th 2021 at 9:36:28am