Fit & sizing
Size guide
Get the comfy base bra in your size, then clip on any strap you like — here's how to get the fit right.
Base bra sizes
The base bra comes in four sizes, in Nude and Black. Molded cups give a smooth, barely-there fit under everything.
| Size | Band | Cup |
|---|---|---|
| 32B | 32 | B |
| 34B | 34 | B |
| 34C | 34 | C |
| 36C | 36 | C |
Between sizes? Size down for a snugger band and up for a little more give. New to measuring? How to measure your bra size at home →
Strap fit & adjustment
Straps are one size and fully adjustable — a slider sets the height just like a normal bra strap, with roughly 12–18" of range. Set it once for your torso and it stays put between swaps.
Clasp compatibility
Every base bra has four gold-tone rings; every strap ends in a 12mm lobster clasp. Because the spec never changes, any strap fits any Bijou base bra — today and in every future drop. See the 10-second switch →
Fit FAQ
- What sizes does the base bra come in?
- The base bra currently comes in 32B, 34B, 34C, and 36C, in Nude and Black. Between sizes? Size down for a snugger band, up for more give.
- Do the interchangeable straps come in different lengths?
- The straps are one size and fully adjustable with a slider, just like a normal bra strap. Set the length once for your torso and it stays put between swaps.
- Will every strap fit every base bra?
- Yes. Every Bijou base bra uses the same gold-tone ring placement and every strap ends in the same 12mm lobster clasp, so any strap clips onto any Bijou base bra — including future drops.
- Can I wear the base bra strapless?
- Yes. Unclip all four points and the molded base bra works on its own under strapless and off-the-shoulder looks.
- How do I measure my size at home?
- Measure your band snugly under the bust, then your bust at the fullest point; the difference gives your cup size. Our step-by-step guide walks through it.
Found your size?
Start with the base bra, then collect the straps that steal the show.