Topshop releases its £55 sell-out dress in a SIXTH pattern – and it’s the prettiest design yet

DAY after day, week after week - Topshop can't seem to stay away from their sell-out summer midi dress.

The high-street giant has released a whopping six different versions of their must-have pinafore this year - and now, they've dropped THREE new styles in one fortnight.

They definitely know when they're onto a good thing.

The mania began earlier this year, when Topshop released their original white and black polka dot midi.

Celebrities loved it, we loved it - in fact, the entire country was obsessed and it inevitably sold out within days before being spotted all over eBay and at Royal Ascot.

And when we heard Topshop were releasing a second design - in reverse colours - polka dot fever hit again.

But just when we thought Topshop had moved on from their cult summer midi, they surprised us all by releasing four others.

First, they dropped a royal blue number, which flew off the shelves, followed by a retro floral print style (our personal favourite), an animal print version and today - a scarf print design.