Duchess Kate Middleton tricks everyone with her 'familiar' tweed ensemble

Duchess Kate Middleton has taught us that there's absolutely nothing wrong with recycling ensembles -- but not so fast, it's actually not the case this time around.

After stunning in Erdem at the Buckingham Palace reception Monday, the royal mom visited the Ronald McDonald Evelina London House -- a "home away from home" for families with sick children -- on Tuesday. During her visit with the staff and partners, she reportedly comforted a mother of a baby who's been battling illness after being born at 23 weeks.

See photos from her visit:

And as is the case with every one of the Duchess' outings, everyone started buzzing about her outfit, assuming that we've seen it before (in 2012 and 2014, to be exact). But take a closer look.

As WhatKateWore.com adeptly points out, the two ensembles look a bit different:

Take note of the fringe detail on the left that's missing on the right. In 2012 and 2014, Middleton donned a tweed Rebecca Taylor jacket with a matching skirt. This time, she paired a slightly different blazer with a matching dress.

It all makes sense now, right? Phew, glad we cleared that up!

While the pieces Kate is wearing are sold out, you can shop the collection here.

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