Our futon mattresses are very unique. We start with a canvas like ticking which is incredibly strong. Our futons have 2 seams,unlike most futons, ours have a top, a side, and a bottom.We use a lace tuft that is sewn twice through the mattress and compressed at 500lbs per square inch to ensure no shifting. This method is far superior to the old style plastic tuft.. These are the best made futon matresses in Canada.