We posted this oversized knit and it sold like crazy. Here are 7 more you'll love.

When your entire job is online shopping, sometimes you see an item and you know.

You get the vibe that it's something women are going to want to buy immediately.

It might be the cut, or the way it's styled. How it just looks like the missing piece from everyone's wardrobe.

Watch as Jessica Vander Leahy tries the Style Maths method. Post continues below.

This $99 oversized cable knit, from Sydney-based brand Lioness, is one of those pieces.

It's called the Gigi Knit Jumper, and it's practically perfect in every way.

The Lioness Gigi Knit Jumper in ivory and cloud. Images: The Iconic.

When we shared Gigi in a fashion edit the first time, in the grey colourway, the style sold like hotcakes.

We shared it again, as part of our Afterpay Day sale coverage — only in a luxe cream version, for a delightful marked-down price. Once again, it flew off the proverbial shelves.

It got me thinking about why this is such an essential style. We're all busy working on our autumn wardrobes — looking for pieces that'll slot in nicely with our straight-leg jeans, trench coats and sneakers.

But why this sweater specifically? Let's break it down a bit.

A slouchy cable knit is a classic that legitimately doesn't date. I've had a white one from Zara in a similar silhouette for close to 10 years now, and it's lasted so many winters that I really can't imagine my closet without it.

Then there's the shape. The high neck and cocooned sleeves give it a directional look, but it's also a style you can throw on without much thought.

And there's the versatility: it looks chic layered over tailored pants or jeans, but because the hemline covers the bum, you can also wear it as a tunic with a miniskirt and tights.

Unfortunately, there aren't many sizes available in the cream on The Iconic, but you can still grab it here if you act fast. And the grey is available here.

Inspired to shop slouchy cable knits? I've rounded up lookalike styles below, for every budget.

H&M Cable Knit Sweater, $44.99.

Image: Supplied.

Cotton On Luxe Crew Pullover, $49.99.

Image: Supplied.

Yours Curve Natural Cable Pointelle Jumper, $85.

Image: Supplied.

Amelius Etienne Cable Knit Jumper, was $139, now $69.

Image: Supplied.

NA-KD Knitted Oversized Cable Sweater, $85.95.

Image: Supplied.

Dissh Tom Cream Cable Longline Jumper, $230.

Image: Supplied.

Shona Joy Bond Mixed Cable Knit Sweater, $280.

Image: Supplied.

Feature image: That's So Fetch; Dissh.