Made from extremely tough and durable 12.5 OZ,600x600 Denier 100% polyester marine-grade material. UV treated material, tight weave and breathable design will prevent moisture build-up under the boat cove; Easy to keep your boat dry and clean. Provides maximum protection against sun, rain, dirt and pollution all year round in water or on land while storing and trailering. Double stitched interlock seams with rot-proof thread. Elastic band around bottom of cover offers a snug fit; Trailering strap design adjusts fast and secures tight with quick release buckles; Ready-Fit designed with a forgiving liberal cut; Reinforced bow, stern, with web loops for quick and easy reinforced tie-down It is designed for Tri-hull and Deck boat with blunt front, low profile windshield Handy storage bag included; trailering straps and bow strap included Our Deck Boat Deckboat Cover are made from a durable, heavy duty 600D marine grade polyester material. This cover is waterproof and is specially made for long term UV protection and the prevention of the harmful effects of the sun. This cover will help to stop fading and cracking that occurs from extended exposure to the elements. The material is also breathable to help with release of condensation that may occur. There is a shock cord elastic hem to ensure a nice secure fit. This cover is designed to fit tri-hull deck boat style with a semi custom fit pattern and is great for short or long term storage. Folds easily for storage when not in use. Available navy, blue or grey.