I would not spray scotch gaurd on it at any time if you want it to breath. DWR is like a wax that coats the out side causing water to bead of and to keep the water from wetting out the material that allows vapors to breath though. A lot of gortex and other material can be rejuvinated (sp) by ironing the coat or throwing it in the dryer. Check with cabelas customer service they can give you a recomendation. Scotch gaurd is good for nylon type of material becasue it seals the nylon. But it won't breath.
