It is made from 420D Oxford cloth that won’t shrink and stretch. Water resistance that makes it great for using outdoors. Protects the snow blower from sun damage, rain, dust, birds, and tree sap. Air vents so moisture can escape helping to eliminate mold and mildew. The bottom rope design will keep the cover on machine completely during wind and storms. This Snow Blower Cover can be easily cleaned with warm water and a soft cloth. A same material bag free of charge.