Was a little too much plunge for my obnoxiously wide-ish boobs. If I had sided up I have no doubt it would have been perfect. Alas, I held out hope and missed the return window 😂. What I love about SKIMS in general is the emphasis they have on side support - none of that is lost in this top (again, I’m a full 34C and IMO I should have sized up) so, whatever your SKIMS bra size (or regular bra size) is, I’d say ultimately it fits TTS, but as we all know - all boobs are different! From SKIMS: The signature SKIMS plunge top, now available as a sporty, flattering swim style. This deep-plunge pullover bikini top features the classic SKIMS logo detail on the supportive underband. Fits true to size. FIT & FABRIC Plunging Neckline (Similar To Most-Coveted Cotton Rib Plunge Bralette) Adjustable Straps Underband For Added Support With Rubberized Logo Center Front, Pullover Style Priscilla (featured in THIS poshmark post as well) Is Size 4 And 5’ 11” (180 Cm), Wearing Skims S 76% Recycled Nylon / 24% Spandex Rinse With Cold Water After Wearing, Hand Wash Cold, Do Not Bleach, Hang To Dry, Do Not Tumble Dry, Do Not Spin Dry, Do Not Iron, Do Not Dry Clean Imported