Cup K? You’re Not Forgotten—You’re Finally Seen

We hear it all the time—“It’s like no one makes bras for me.” Well, now someone does. Our Cup K collection is here to prove that proper support, beautiful design, and all-day comfort can exist in one bra—even for fuller busts.

At The Foundation, we’ve carefully chosen K-cup bras that don’t mess around. These styles are crafted with reinforced cups, super-wide straps, strong underbands, and clever construction that lifts and holds without adding bulk. They’re not just strong—they’re stylish too, thanks to premium labels like PrimaDonna and Empreinte that specialise in full-cup confidence.

Still unsure if you’re a K? You’re not alone. Read our go-to guide for finding your perfect bra size or drop in-store for a professional fitting—we're here to make it easy, not awkward.

K-cup bras that don’t compromise. Because your body deserves more than "close enough". Shop the collection now and feel the difference.