All Merlin liners are manufactured from 100% North American virgin vinyl. Appearance and quality construction come together beautifully in a Merlin pool liner. It all begins with the pattern design; many of our patterns are Merlin Signatures, developed in collaboration with professional designers whose creations reflect the latest home decor and color trends. Merlin pool liners are custom designed to provide the best fit and durability. Merlin designs are specific to you pool and do not rely on extreme stretch to fit. Each liner is CAD-designed and custom manufactured to accommodate steps, angles, objects, and unique. Merlin even has your seams covered. Our silk seam process creates a flatter seam that is easy on your feet and is less likely to catch debris.