Will it actually stay up?

Yes, and it's the front closure that does it. A strapless bra that closes behind you has nothing to pull against. This one closes at your sternum, where you can see it and tighten it exactly where you need it. Then the silicone runs the whole way around the band instead of sitting in two thin strips at the edges, and three flexible stays under each arm stop the top edge rolling when you lift your arms.

Can I do it up without reaching behind me?

Yes. That's the front closure. You do it up at your sternum, in front of you, where you can see both clasps. No twisting, no reaching back, no hooks behind you to find by feel. Handy if reaching behind your back has become a chore, and easier to adjust in front of a mirror.

Two questions and you're done. Your cup letter, then your band. A 34B lands on M, a 34C lands on L. The finder does it for you in ten seconds, or you can measure your underbust if you'd rather be exact. It runs snug on purpose. The compression is what holds it up. If you'd rather have less hold, take the next size up. Get it wrong and we send the right size free. You keep the first one.

I'm a D cup. Will it work?

No, and we'd rather tell you now. Mirelle is built for A, B and C cups. On a D or above the cups gape at the top and the band rolls down, and no size swap fixes that. We'd rather lose the sale than take your money for something that won't work. A fuller line is in the works.

Will it show under a tight top?

There's nothing on it that can show. The cups are bonded with a 1.8 mm edge instead of a stitched seam, and there are no hooks, no rings and no sliders anywhere across the back. Just one flat band. Under a fitted tee, a ribbed tank or a going-out top, it reads as skin.

What's in the box, and what if it's wrong?

The bra, a set of removable straps, and a way out. The straps clip on and off, so the same bra wears strapless, classic, halter, cross-back, one-shoulder or lower-cross. Six ways, one purchase. Free tracked shipping to the US, Canada, the UK, Australia and New Zealand. US orders ship within 48 hours and arrive in 6 to 10 business days. One free size swap per order: we send the right size and you keep the first one. You have 60 days to ask, worn or washed. No photos, no questions. Everything ships in plain packaging with nothing written on the outside.

BLACK FRIDAY·Up to 40% off every braFree shipping·Free size swaps Wrong size? We send the right one free 60-day fit guarantee·No photos, no explaining