Ottertex Waterproof Canvas is a flexible and durable fabric that can withstand the elements of nature. At 0.55mm thick, Ottertex Waterproof Canvas has a wearability rating of 25,000 double rubs (a measure of back and forth motions on a surface before the fabric deteriorates. For comparison, furniture in a hotel room is usually rated at 15,000-30,000 double rubs.), a tear rating of 74N warp and 55N Weft (the measure of how much force is required to tear waterproof canvas), a tensile strength rating of 1473N warp and 727N weft (the measure of how much weight waterproof canvas can hold, and a cold crack rating of -10° F or -23° C (the minimum temperature waterproof canvas with withstand). When comparing different canvas fabrics, it is important to compare the abrasion, tear, tensile strength, and cold crack ratings. Click here to check out how to choose the best outdoor fabric by visiting our blog post here.