Coolest marathon cover for summer?

[dotgirl]

Does anyone have an opinion on the coolest cover for your Britax Marathon? We have the colonial blue one, but I'm wondering if anyone has found any others to be better at keeping your little one from getting too hot?

Our car has A/C, but his back still gets all sweaty on long drives.

[HallsofVA]

For what it's worth, the Britax website lists the fabric content of the various covers. Only the New Blues covers are 100% cotton. All the rest are poly-cotton blends, which I assume would make them hotter than the denim one.

[iluvmy2boys]

We have the new blues cover for our marathon

now granted, my son is a lot bigger and is forward facing (it's currently my 5yo DS's seat) but this cover is the only one he has not sweat a TON in, but he still does sweat. We live in Southern VA and he's naturally a VERY warm bodied kid (I mean his hands will be hot in the middle of winter and he wears a jacket in the winter because he just doesn't get cold easily).

HTH?