GCI OutdoorSlim-Fold Low-Height Backpack Event Chair and Table

Is the fabric part of the chair easily removed to wash and store? I'd like to store the metal part in the garage and the cloth part in the closet.

Is this chair rainproof? Is the material well suited for rain to just be left outside and won’t mold?

Do you sell replacement backpack straps

What is the height of the back of chair when opened