I got the Louisiana Grills LG 900 Insulated Blanket for my RT-590. There are 3 magnets long the front bottom edge which holds on well to the cook box. Simply release the magnets to open the hood. There are 2 straps with snaps on the bottom back corners, but they didn't work with my comp cart (probaby will work without the comp cart). I pull the straps toward the front and attached them some large magnets and it holds good. There's a velco opening to allow it ti be easily placed it over the horns. Takes less then a minute to install or remove. Overall, the fit is pretty good, almost as if it was made for it. The material seems very durable and it's pretty thick. I do have a gasket on the lid, otherwise the blanket would get pretty stained.
Just need to source some all weather vents to get the smoke away from blanket.
Just need to source some all weather vents to get the smoke away from blanket.