MAR-MTRCV-11-40 - MOTOR COVER F40 This particular cover is for all VMAX SHO F40 Yamaha outboards. It is constructed of durable SurLast solution-dyed polyester fabric. SurLast fabric offers the ultimate protection against the harsh marine environment. This non-abrasive, water-resistant cover is also resistant to UV rays, mold, and mildew for added protection. The cover features an adjustable snap-buckle strap for a secure and snug fit.