Breathable Optimist top cover made of Moistureguard 2000, a heavy-duty 900D polyester with a polyurethane membrane, which has excellent breathability and is fairly water-resistant.FeaturesCover can be tented by storing the spars under the cover inside the boatWide skirts around the edge of the hull for good protectionFast and easy to install with two straps with two adjustable quick-clip bucklesSpecificationsMaterial: 900D polyester