I've been looking for some plain white crop tops for DD, but all the ones I've seen are quite thin material, or they're thicker material but colours like black, pink and burgundy. I need something that will give her a little bit of coverage but white so she can wear them under her school shirts. She's nowhere near ready for a bra yet but she needs something as she's just started getting breast buds. Does anyone have any ideas where I can get some that aren't really thin? Thank you!