Silver Jet Ski PWC Cover Sea Doo Sea-Doo Bombardier GTX S 155 2012 2013 2014 2015 2016 2017 420 DENIER WOVEN POLYESTER MATERIAL. Designed for storage and trailering pursopes. Semi-custom fit Jet Ski cover with an integrated trailering system Technologically advanced Marine Grade Poly fabric for the best sun, rain, dirt, mildew protection. Rear air vents reduce inside moisture and wind lofting. Elastic cord sewn into bottom hem for a fast, snug fit. COLOR: Reflective Grey