What setting should my bra's closure be on for a proper fit?
If you purchase the bra on the loosest setting you have at least two other settings to tighten the band as time goes on. The band will relax through it’s lifetime of washings and wearings, so it is important to have the option of tighter settings so you can get the longest life and proper support out of your bra.
If you purchase a new bra on the tightest hook already, as the band relaxes, you have no tighter setting to move to. You are left with a bra that doesn’t give you the proper support and doesn’t last as long as it is intended to.