The Coastline Pool by H.I.I. MFG of Doughboy successfully blends a beautiful arctic-grey pool frame with a dynamic gray and blue painter's brush stroke pattern to create a pool model designed to fit any backyard! The Coastline may be an entry level pool from Calibay, but don't let that fool you. Among other features, the Coastal features a wall that is much heavier than any other pool in its class. Not only does this make the pool stronger, it also gives us the confidence that it will last!