The Ripstopper is the ultimate winter cover. It is durable, dependable and built to last! If your cover gets a hole or a puncture, no need to worry, this cover will not rip or tear. Latest technology proves to make this cover the toughest there is. Constructed of woven polyethylene fabric is time tested and willing to last a few years. This tightly woven solid cover material is made from a super-strong polyethylene with an 12 x 12 filament scrim, to resist the harsh winter weather. Specifications: Ultraviolet light inhibitor to protect against the suns damaging rays 4 ft overlap AG / 5' overlap IG 12x12 scrim per square inch