Spring Weave Pure Cotton Bra No Steel Ring Front Button Summer Thin Vest Style Womens Underwear Breathable Comfortable Elderly Womens Full Cup Bra

I bought a size up, so it's a bit loose, but it's really comfy to wear around the house.

These are definitely made of pure cotton, which I really love since I tend to be allergic to non-cotton materials. The only thing is that the sizing seems a bit off. I bought two different sizes to get a looser fit—one in white L and another in small leaf XL—but they ended up being exactly the same in length and width. The tags do say one is L and the other is XL, though. Luckily, they both fit, so I decided not to bother with exchanges.