There are 3 steps to a great fitting bra – the right size, worn correctly and a well-engineered bra.

At The ONE TWO we’ve got you covered with a carefully engineered structure, so the next critical step is that we make sure you’re putting your bra on correctly and, finally, we can then check the size. So, let’s get into it.

1. Loosen the straps all the way

Like every piece of elastic on a bra, straps stretch with wear. So, like with the band, you don’t want to start with them overly-tight – both because over-tightened straps are the easiest way to disguise a poor fit and because they will stretch over time. So let’s start with them looser and tighten gradually over the next 6–12 months as the elastic relaxes.

If you’re used to wearing straps tight, this might be the bit that surprises you — our band’s flexible structure holds the weight, so the straps don’t have to.

2. Put the band on low and firm

Most women wear the band too high up their backs. When it rides up, the wires can’t sit where they should — and that’s where slipping straps, digging wires, and most “this doesn’t fit” complaints originate. The band is acting like a sling – pulling up under the breasts, instead of gently lifting. This shape is also unstable and prone to distorting the wires – if you feel like your wires are literally poking into you, this is the most likely culprit.

The top of the band should sit four finger widths below the bottom of your shoulder blades. Firm, not tight. A new bra should fit on the loosest hook (or with an extender on its first hook), so you’ve can tighten it as the elastic relaxes. If you’re already on the tightest hook on day one, let’s move down a band size.

3. Scoop the cups

Lean forward. With your opposite hand, reach all the way under the wire and scoop your breast tissue up and into the cup. If you’re a fuller bust, push the top of the tissue sideways into the cup as well.

The wire should sit at your breast root — the crease where breast tissue meets ribcage. Not on tissue. Not above it. On the root.

This is the step most women skip, and it’s the one that changes how the bra fits more than any other. Scooping; pulls the soft tissue under your arms into the cup – making it more comfortable, reducing the digging of the band elastic and creating a more flattering silhouette.

4. Now you may… tighten the straps — maybe, slightly…

Now, only if you need to, tighten the straps. On a new bra, the most you should ever tighten them is halfway, and that’s only if you’re at the smaller end of the size range. I wear mine fully loose for the first few days.

If the straps need to go past halfway to feel supported, the cup or band is wrong. Tell us what’s not working — we’d rather hear it than have you wrestle a bra into submission.

Wear it like this for an hour. Cups smooth, no overflow, no gap. Band low and firm. Straps loose to halfway. If anything’s off after that hour, send us a note. We offer free video-fittings and email troubleshooting (this is also how we keep abreast of your experience). We’re also happy to exchange within 30 days of wear.