Rain cover for Exo Mountain Gear 5500 pack

[optic2]

Anyone have suggestions for a rain cover for the Exo Mountain Gear 5500 pack? I know they make a roll top dry bag that goes inside the main section of the pack, but I'm not interested in that.

[jrebel]

Buy a kuiu rain cover.  Super light and durable. 

[Stein]

Do you really need one?  Rain covers are a PITA in my opinion, put a couple pillows in there and hose it down in the front yard and see what water ingress you really get.  My Exo 2000 pack is pretty water resistant.

You may just need to protect your sleeping bag a bit.