The measurement around your underbust - the area around your ribcage where your breast tissue ends - and the additional four inches is supposedly your band size, and the difference between that number and the measurement around where your breasts are the most projected from your body is your cup size. Most American retailers and lingerie brands size bras by measuring the underbust, adding four inches (five if the underbust measurement is an odd number) and subtracting the total from the bust measurement. new bra comparison #abrathatfits #abtf #bratok ♬ Jazz in the Night - Smooth Jazz Though they appeared to protrude the same amount, the properly fitting bra was wider in the cups and more narrow in the to old vs. Upon resizing herself, she found that a 32DD fit better, and compared the 32DD bra to the 34B bra in a follow up video. 'Let's try this on, there's no way,' Charisse said, after a trip to Victoria's Secret.Ĭharisse was shocked when the bra actually did fit her, and that it fit more comfortably than her previous size did. In the video she posted, which now has 12.3 million views, Charisse measured herself using A Bra That Fit's calculator and found that she was actually a 32D, which she initially didn't believe. This was a revelation for most TikTok users, many of whom had been sized according to outdated methods.ĬharisseV, another TikTok creator, posted a response video explaining that although she usually wore an A or B cup, the underwire always seemed to dig into her actual breast tissue. She demonstrated this using a sock filled with rice even though the amount of rice in the sock didn't change, reshaping it to be wider and flatter made it appear vastly different from when it was more Size + Shape | #braschool #brasize #cupsize #brafitting ♬ original sound - madisonxalexandra Though they may be the same size, the wider-set breasts will appear to be more shallow. In other words, breasts that take up less lateral space can appear larger than breasts that are spread across a wider space. A breast that is rooted to the chest wall over a smaller surface area, the creator explained, is going to seem more projected from the torso than breast tissue rooted over a larger one. That's because cup size is measured by volume, not visual projection. People began discovering they'd been wearing the wrong bra size in early April, when lingerie model turned lingerie educator Madison Alexandra posted a video showing viewers how two very differently shaped breasts could actually be the same size. This viral breast size calculator that blew up on TikTok may change the way you think about bra sizes entirely.

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