I used the foam wall and really like it. I have a 54" pool and used the foam cove over 2" Styrofoam. It came about 4" short of reaching the top and man is there a difference between touching the liner where here is no foam and where there is foam. I could not have believed that 1/4" of foam would make that much difference. The wall is so soft where the foam is. We love it. I am glad I used it. I bought it for insulation purposes but would suggest it for comfort. You would think it was 1/2 thick when you touch the side of your pool with it in. The part that does not have foam is hard and feels just like it its. Steel with a piece of vinyl stuck to it. I would get it. It comes in 1/8" and 1/4" we got the 1/4".
Aranon