CULT BUY: The ultimate plain white (or black) t-shirt that costs less than $20.

I’ve been trying to be more grown up with my wardrobe.

According to fashion experts, that means I need “good basics”.

Apparently my so-worn-they’re-almost-grey white t-shirts with sweat patches under the arm don’t qualify. Go figure.

However I’ve quickly realised that “good basics” often mean “very expensive”…and while I have no problem paying for high quality items, sometimes the almost three figure price tag for what is a plain white t-shirt that will eventually go the same way as my other t-shirts seems a little steep.

Then I walked into Uniqlo and found ‘the one’.

It’s great quality, has a flattering neckline even for big boobs and it costs less than your Saturday brunch.

Yes, the Women’s Uniqlo U Crew Neck Short Sleeve T-Shirt, $14.95, is the plain t-shirt your wardrobe has been missing.

The cotton feels thick and high quality and the straight cut is slim enough that it doesn't look shapeless. The sleeves are a nice length and the slightly thicker band detailing around the high neckline makes it a flattering one.

With larger boobs, I often find high neckline t-shirts make me look too top-heavy or droopy. Not this one.

In fact, I was so blown away by the t-shirt, I walked out with four. FOUR. (That's two white and two black).

It's actually available in 11 different colours, including grey, millenial pink, blue and orange, and goes up to a size XXL.

Adult wardrobe, here I come.

Chelsea Bonner is the founder of Bella Management, and she aims to change the way people see ‘plus’ sized models. From discovering Robyn Lawley to representing 80 per cent of the population, this is how she’s doing it. Listen below: