Underbust: Approximately 30cm (Please note that there may be some errors due to amateur measurements) It's tight for me (both the cups and the underbust elastic have strong hold), and I've only used it a few times, but the stitching on the tag and adjuster seems to be loose, and there are some frays. (Photos ⑥⑦) Although there is no feeling of use, I am an amateur, so please understand that I may overlook stains or dirt. Please refrain from purchasing if you are concerned about minor details. I would be happy if it could be of help to someone(^^) ᕷ⋆͛* Breathable navy sports bra with a strap design for a comfortable fit. - Brand: UNDER ARMOUR - Color: Navy - Size: L - Design: With straps - Features: Breathable material - Logo: UNDER ARMOUR logo - Band: Wide band Thank you for viewing.