I haven't worn a proper underwire bra in years, but I've never really found the perfect style/fit... until I found Knix! Their LuxeFit Pullover bra is AMAZING! I'm a 38B so my band is quite wide, but my bust is small so it's strange trying to find the right amount of width with minimal support needed... Knix has it all, I am so impressed. I literally can't tell I'm wearing a bra, it's so soft and light-weight, yet supports well and gives my GREAT shape. For smaller busts I'd recommend a size smaller than you're used to, as the fabric does loosen up and eventually molds to your shape. I tend to fluctuate in size lol so I purchased an L and XL for those strange times! SO happy with Knix, just so comfy and flattering!