Macbook Air case for new rMBP

I just got a case that was advertised for a macbook pro, and I noticed all the cases in the store even when marked rMBP were a little too big. Anyhow long story short I bought a case and its got about an inch of free space on each side which sucks, I'm going to return it.

Do you guys think it would fit good in a rMBP 13 case? They are almost the same thickness. Are there any cases you guys would recommend?