Attwood Custom Mercury Engine Cover 2-Stroke 2.5L V-6 Efi Constructed of 2-Ply Laminated Polyester The outer shell is tough, abrasion-resistant polyester Acrylic coating keeps the cover waterproof and UV-resistant The inside lining is a soft, non woven polyester backing that provides a cushioned barrier around the engine cowling A 1-inch polyweb strap in the bottom hem cinches the cover tight. Includes quick-release buckle for fast tightening and removal