If you are already storing in a "shop" make sure you are getting an indoor motorcycle cover. Indoors are breathable, and usually soft cotton-like. There is a difference between an indoor and outdoor cover.
Wl-Mart $20 in the automotive section. two sizes available. Look hard as they are not a high volume sales item. Ask clerk that knows automotive where they are at. Blue nylon top with heat resistant bottom. Flods down real nice. Comes with soft case.