Quick answer

Most Chastity Navy Bra fit problems come from the band, not the cups. Fasten the band on the loosest hook so it sits level and snug, then shorten the straps only until they stop slipping. If the band still rides up or the cups gap after those two moves, the size is wrong rather than the adjustment.

Start with the band, not the straps

The Chastity Navy Bra uses strappy elastics and padlock hardware, so it has less stretch to give than a plain everyday bra. That makes the band the anchor: it should sit level all the way around and stay put when you lift your arms. Fasten it on the loosest hook first, because the band will relax with wear and you want room to tighten it later. If the band climbs toward your shoulder blades, it is too loose, and tightening the straps will not fix it.

Adjusting the straps without pulling the cups out of shape

Shorten both straps a little at a time and check in a mirror. The straps should lie flat against your shoulders with no digging and no gap you can slide a finger under. On a contoured quarter-cup style like Chastity, over-tightening the straps tips the cup edge away from the body, which is what creates the peek-a-boo gap. If the straps keep slipping after a small adjustment, the band is almost certainly too loose.

When a gap is the design, not a fit fault

Chastity has a deliberate peek-a-boo feature, so a small amount of separation at the top edge is intentional. Judge the fit by whether the wire sits flat against your ribcage and the cup edge follows your natural shape. A gap that appears only when you lean forward or raise your arms is normal movement, not a sizing error. A gap that stays open while you stand still usually means the cup is too large or the band is riding up.

Living with padlocks, keys and chains

The padlock, key and chain details on Chastity add weight that a standard bra does not carry, so check the hardware sits flat rather than pressing into your skin. Fasten the padlocks before you adjust the straps, since the hardware can shift the balance of the cups once it is attached. If any metal edge digs in during a long wear, loosen the nearest strap by one notch rather than removing the piece.

Fit diagnosis: symptom, cause, fix

  • Band rides up at the back: The band is too loose, so the weight of the cups pulls it upward. Move to a tighter hook and check that the band sits level under the shoulder blades. If it still climbs on the tightest hook, go down a band size.
  • Cup edge gaps when standing still: Either the cup is too large or the band is lifting the cup away from the ribcage. Confirm the band is level first, then reassess the cup. If the gap remains after a band check, try a smaller CUP option.
  • Straps dig in or slip off the shoulder: Over-tightened straps on a quarter-cup pull the cup edge outward. Loosen one notch and recheck before shortening again. If the straps still slip with a snug band, the band is the problem, not the straps.
  • Padlock hardware presses into the skin: The metal adds weight a standard bra does not carry, and it can shift the cup balance once fastened. Stop adjusting and consider a lighter style if the pressure persists after loosening the nearest strap.

Product facts

  • Chastity Navy Bra: Contoured quarter-cup with light push-up and a peek-a-boo feature, made with smooth satin and strappy elastics. The shallow cup and strappy construction mean the band does most of the supporting work, so band fit matters more than strap tension.
  • Chastity Navy Bra: Bondage-inspired design with padlocks, keys, plates and chains. Added hardware changes how the bra sits on the body, so adjust straps after the padlocks are fastened.
  • Chastity Navy Bra: Available in Size and CUP options. You can fine-tune the cup independently of the band size, which helps if the band fits but the cup edge gaps.