This product has 4 sizes, please confirm the size you want before buying 11-13FT: 420 X 270 CM 14-16FT: 530 X 290 CM 17-19FT: 600 X 310 CM 20-22FT: 700 X 320 CM All ROUND PROTECTION: (water resistant 210D polyester + waterproof PU coating + anti-UV coating), with double stitching seams, 3 pieces corner reinforcement at front and rear protect your outboard from scratch, dust, rain, snow, and UV rays WATERPROOF: 210 denier marine-grade polyester and outstandingly capable of withstanding heavy rain, snow, wind, and UV rays other damaging weather elements.more anti-aging, scratch resistant & tearproof, extending outdoor life SUPER WATERPROOF PERFORMANCE: Owing to the superior oxford and our special textile process,boat cover can withstand up to 1500 Pa water pressure . In addition, the inner layer also adds the double waterproof PU Coating and the seams come with the waterproof strip, all of which completely resolve the issue of water seepage of other similar products. Your boat will perfectly keep dry even during a heavy rainstorm or snowstorm UV PROTECTED & NON-FADING: Our boat cover comes with anti-ultraviolet, anti-aging and other functions, which protect your boat against sun, wind, dust, and other nature elements, keep your boat always in a good condition. SECURE LOCK WAY: Our boat cover was equipped with adjustable straps (made of high-density material) and high strength quick-release windproof buckles which allow you to conveniently lock the cover with your boat and prevent it from being blown away. Elastic cord around the bottom hem ensures a tight fit to provide your boat with 360 degrees of all-around protection, perfect for both trailering and outdoor storage.