Fit is the whole question with K Size Bra. Get it right and almost anything else works. Fit at the shoulder and the waist is hard to alter; length and taper are cheap to change. Brand size labels are not standardised, so the measurements in centimetres are the only comparable number. The band does the work, not the straps. Go down a band before you go up a cup. Worth saying plainly: our partner brands do not stock k size bra itself, so what follows is the pieces we would actually put with it rather than links we cannot stand behind. The groups below run from the decision that matters most to the ones you make afterwards.

What decides this is band fit, cup construction and fabric. Everything else is preference. Two from the first group show the range: Sommer Swim's VENEZIA Nero - Black Camisole Lingerie at $53, and fleurdumal.com's Margo Lace Long Sleeve Bodysuit at $149. The first is the easy entry point; the second is where the money goes. The band does the work, not the straps. Go down a band before you go up a cup. A higher price mostly buys materials and finishing, and occasionally it buys nothing at all.

Nude means nude to you, which is why the range matters. From the second group, Sommer Swim's PANAREA Nero - Full Black Thong ($53) is the one that earns its place, because it works in more than one context without being restyled. The third group is smaller, and it is there for the decisions you make after the main one. None of this needs the whole group. One piece from each is usually enough.

There are 20 pieces here from 13 brands, $48 to $298, all in stock when this was written. We would not buy all of them, and neither should you. Monday Swimwear's Outpost Bra - Heather Powder Pink/Ivory at $48 is the low-risk way in, and Lunya's Washable Silk Robe at $298 only makes sense if this is a category you already use constantly. To be straight about it, if you came here only for k size bra, this page will not solve that. It will solve what goes around it. Nothing here is included because it is famous, and price is not used as a proxy for quality anywhere on this page. If you take one thing away: pay for the thing that touches your body and economise on the thing that sits on top of it.