Fit Problem: Band rides up in the back

The short answer: The band is too loose to anchor, so strap tension pulls it upward. Go down a band size and up a cup letter (sister size down). The band should sit level and firm on the loosest hook when new.

Stand sideways at a mirror: a fitted band sits level all the way around, parallel to the floor. If the back sits higher than the front, the band has surrendered. What pulls it up is strap tension: straps hang from your shoulders, and when the band cannot anchor against your ribcage, every arm movement lets the straps winch the back upward. By afternoon the band sits between your shoulder blades and the cups sag in front, because cup support comes from the band's anchor.

The fix is one sister-size step: band down, cup letter up. A 36C riding up becomes a 34D, same cup volume on a band that can actually hold. When you try the smaller band, it should feel noticeably firm on the loosest hook; that firmness is the anchor working, and the band will relax about an inch over its first months of wear, which is exactly what the tighter hooks are for.

Two cases that mimic this symptom without being a size problem: a bra past its elastic lifespan (bands die around 8 to 12 months of regular rotation, and a dead 34 rides like a fresh 38), and straps cranked too tight in a bid for lift. Loosen straps to light contact, and if the band still climbs on a newish bra, it is genuinely too big.