... ship cover is 100% waterproof.2,color:usually,we use the black navy blue,or dark blue ... cover,jetboat cover,or hardtop cover .3,size:we have made these watercraft cover in a scope of ... the sample fee with us.8,other info.:we have used special material for fixing the ployester oxford boat ... stable on the ship .This is 100%waterproof,we have different year garantee on this.Better material more expensive ...