I am 34 DD (34 E) and I bought the size 36. It is the perfect snug (if you don’t like it snug, take bigger). Some said it became smaller when washed and dried. Mine remained the same. They said to size up and that’s why I took a 36 instead of 34. I’m glad I did. It’s still tight but I like it when it’s snug snug, tho it does not hurt, very comfy. Hold the breast well, I bought for lounging and sleeping but I tried and can do walking, fitness and weight training with them, but not cardio or anything too intensive with jumping and running, it’s not a sports bra, it’s between a medium and light support. Some said it had no support, but it was really fine for me, there was no PUSH up pretty hollywood boobs, but for a wireless and cotton bra, it’s still cool. I see myself wearing them when grocery shopping or doing daily things like working. Maybe because my boobs are quite big, they move less in the tight bras. DO NOT buy if you are bigger than my boobs (i don’t say DD because you can have a DD and have breast that are smaller than mine) people said that only the band size changes with sizes, the area that covers the breast doesn’t. Even this is a bit bit small for me (area wise not band wise) not all 34DD will be in love, it’s not perfect sizing, I have some side boobs going on, nothing too much or annoying, but don’t buy them if your boobs are bigger than mine for sure, it won’t cover them. I checked, both bras (beige and black) are 95% cotton and 5% spandex. Really comfortable and it has a usual cotton texture, not anything too soft or too rough. Both came padded, the pad haha it’s a bit weird (you can buy other pads that are larger) you can see the pad a bit when you look on the sides and they are kinda stiff (you don’t feel them tho) which I like because they don’t really switch positions when washing and drying. For the price, they are amazing. They kinda look great too, a bit weird with the pads if you look closely but it’s fine. Some also said it gives them uniboob but mine are fine, they are very near but not a uniboob, but if you sleep on the side, they will touch ofc. Anyway, I recommend them :))))