The Fits Everybody bras come in a whole host of styles, from comfy triangle bralettes to more structured underwire bras. By far the most popular styles are the Triangle Bralette and the Cross Over Bralette, the latter being Kim Kardashian's SKIMS style of choice. For a non-wired style, these actually provide a decent amount of support for smaller busts thanks to their super smooth, double-layered construction. As mentioned, getting your size right is key, although the added stretch does allow for this to be slightly more forgiving.
If you prefer a little more support or some added lift, SKIMS underwire bras may be better for you. These actually follow a more traditional sizing structure on the band and cup sizes, so you're safe to stick with your true size on them.
For tips on finding your true bra size, you can check out our bra fit guide.
Once you've got the right fit going, you'll notice that SKIMS bras are super comfy. The bra styles are made from buttery-soft stretchy fabric, and the Cross Over and Underwired styles feature hook and eye fastenings for added adjustability. They even have a solution for uncomfortable strapless bras in their Bandeau bra, which offers support with a seamless finish, without digging in at the sides as a lot of strapless styles do.
SKIMS Fits Everbody pants fit pretty true to size too, and are great for wearing under tight clothing like leggings thanks to their seamless construction. If you are between sizes, opting for the smaller size should be fine, as there is quite a lot of stretch in them.