I measured myself, and in the time it took to arrive from the UK, my boobs went up 1-2 cup sizes. I tried really hard to make this bra work, but it's just too small for me. Besides that, the quality isn't particularly great. The cup curled immediately. The wires are narrow which is nice, but it isn't projected outward, so it ends up being a bra with really tall cups. It's comfortable and affordable though and looks really nice, so if it actually fit me, I assume it would be a decent t-shirt bra.
Typical for a Just Peachy Bra is the really short band. It's nearly to tight for me but 32D is to long. So I wear an extender for 1-2 hooks more. Other than expected the bra don't need a lot of volume at the top so it is good if you need wide wires, shallow cups and few volume on top.
About to give up on t-shirt bras. None have enough immediate projection or depth. This one has more depth than most in my size. Perhaps if the immediate projection was better , this depth would work. I've come to the conclusion that I have short roots , so therefore the cups are just too tall for me and I don't fill the top very well, especially on my smaller breast. The front center gore has elastic criss crossing in the gore and so the fit is snug. I normally wear a 28GG. This band fits like a 28 , so I'd definitely size up in band size
The band is compared to other english bras about one size small, the cups are about one size big, at least for my FOB breasts. The lace is scratchy but the color blends well with my skin tone, its seamless, the bra can be washed in the machine and it is okay for the occasions when I need an invisible bra.
I have this in 32B Nude, I sized up in the band as I know this brand is tight, which holds true for this model. It's a good, firm band, and doesn't feel too stretchy for having sized up. The cups work well for tall roots, wires are slightly narrow. The straps are fully adjustable, and are long enough for my broad shoulders! It's quite a pretty basic bra, with lace band and subtle spots on the cups. Practically invisible under a pale top.