We use only the best materials to build our spa covers. From our custom-made vinyl, all the way down to our extra-sturdy spa liner, every piece and part that becomes a part of your spa cover was carefully chosen to offer you the best spa cover around. By being made here in Colorado, we can cut down our cost and pass those savings onto our customers. We will provide you with the best customer service around. Our Turnaround time is incredible. We have the best Quality, 100% Virgin EPS insulation Foam. We have a 13oz Spa Liner which will last you much longer than your typical 8oz liners.