washing
I have washed these bags with success, but it depends on the overall condition of the bag. If it's to fragile or rotting out, I would shy away from it. If it's still in good condition I gently hand wash the bags and hang to dry. I turn it inside out and use a garden hose outside to remove as much of the dirt as I can before putting it in the bathtub to hand wash. That way I can lay it flat under water.
Return the bag to right side out showing logo then I use laundry detergent in warm water and go up and down the bag squeezing the rest of the dirt out. Then drain the water and fill again with clean water and repeat the process for rinsing. You can also use the shower head for rinsing. By keeping the bag flat and gently squeezing it helps not to damage the logo. Thats why I do it in the tub and not a sink. Kirby bag logos can flake and easily be damaged.
Having said all that washing it may not help with the discoloring that may have been caused by sunlight exposure.
