Will this fit the MacBook Pro 13" with Retina Display with a speck hard shell case on it?

I have a MacBook Pro 13" with Retina Display and have a hard shell case on it, but was wondering since the retina is thinner and it can fit the 13" without retina if this would do, I love my hard shell, but want a thin case to carry it with me as well. Thanks!

MICHAEL Michael Kors Sleeve for MacBook Pro

MICHAEL Michael Kors Sleeve for MacBook Pro

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