Why won't bra manufacturers hear us? We WANT and NEED 100% Cotton adult women bras! We want fully adjustable, underwire, 100% Cotton Bras, Demi Bras, Push ups/NONpadded, etc. Do you hear us? Comfortable, Breathable, Adjustable; boob-flattering, t-shirt wearable 100% Cotton bras! I'm normally a 36 B, but I'm on the smaller B range, as I'm a petite and fit-ish (not fat, but not skinny either....rather average). I wear size 6 clothing. I've always worn underwire, and I like them; they look more flattering on me than wire-free or "sports bra" (gag) types. There used to be no problem finding the rare 100% Cotton underwire bra with NO exposed elastic. Remember the "Joe Boxer" brand ones we used to be able to get at "big box" stores like K-Mart, Walmart, Target, etc.? They were a bit heavy, but you could almost get away with wearing them as bikini tops in the 80s :). Even Jockey, back then, used to have some "bikini" style triangle bras that were pretty comfortable, and more breathable than the Joe Boxers. Now Jockey has way too much exposed elastic....and it's HUGE elastic. The better stores (Maas Brothers, J C Penny, etc.) that used to "cap" malls, likewise would stock at least ONE 100% Cotton underwire brand too....but NO MORE! And with Covid-19, NO BRA is worth, literally, "shopping to death" to find at "brick and mortar" stores. Like many sensitive skin "100% Cotton" types, I'm down to trying out Amazon's "little girl" bras, because, for some reason, the "industry" seems to believe that only men and children should be able to enjoy soft, comfortable, non-scratchy, breathable underwear. Grrrrrrrr. I bet if MEN had to wear bras there would be PLENTY of breathable 100% Cotton bras on the market! O.K. tirade over.....about THIS product: Nice try. Positives: 1: No padding; fairly high cotton content, but not 100% Cotton. 2: Fabric is very soft; does not irritate skin at all. No rashes. No chafes. 3: Does not cause sweat marks on clothing when exercising....which is awesome. I am so OVER all those darn padded bras made of.....poly insulation crap that doesn't breathe at all, and never dries out....NEVER....not on a bike ride...not after washing and hanging up. 4: This bralette not only "breathes" while one exercises, but can also be thrown into the dryer after washing, and dry out completely....so no fear of "What's growing in my bra that's been hanging in the laundry room overnight....and still isn't dry" (Maidenform). 4: Price; they are affordable, but I still wish I could have tried ONE, not Three. Perhaps then I would not have been reluctant to try out a Medium to see if the fit was better with less ride up...but alas, I cannot afford ANOTHER buy at the three bra price. Negatives: 1: Not adjustable width wise (I prefer the 3 option, back closure, hook style so one can really tailor the bra to fit the individual...at every time of month : ). 2: Difficult to adjust shoulder straps (the slide adjustment is on the back....why?) 3: I miss underwires and the ability to really tailor the bra to fit ME, exactly, and to look flattering, whether I'm wearing a casual T-shirt or a pretty sundress, or button down classic shirt with intentional or accidental "cleavage" showing. 4: In spite of being soft and breathable fabric, there's something about the fit that just isn't that comfortable. I can't wait to get it off as soon as I'm in the house....which: Positive: is super easy to do, even under clothes, with the super-stretchy fabric and front hook :) Take away: if you're a smaller B cup...maybe try the medium? If you hate a bra that rides up your back...then Medium might be better than Large? I followed the directions for measuring properly for size, but the Large seems too large, or too stretchy; it rides up my back, and I keep trying to pull it down to a comfortable place.....which, sadly, also brings the top line of the front to just above the nip where the edge of the cup (facing cleavage) then dents a diagonal line across each boob.....not so sexy t-shirt look. Oddly, one of the three bras in the package - the black one - was a slightly better fit. The "nude" or "natural" color one was by far the largest and least comfortable....figures....as that's the color that suits most t-shirts best....especially for all of us Florida gals wearing mostly 100% cotton white or light colored t-shirts in order to survive the heat and humidity here. I wanted to give this bra style a chance...but, sadly....the Large just didn't fit my 36B all that well. I think it might work for the larger Bs, or 38 Bs.