The material of the coating is very thin, but nevertheless incredibly flexible! When Obtaining my 140s cold foam mattress, I was a little afraid that I tear the reference because the mattress was incredibly hard and I had to pull hard at all corners. But respect has my final load without problems withstood and sat behind perfectly on the mattress.
I was a little unsure at the beginning if the cover fits because my mattress is about 15cm high. But in retrospect, the mattress would think I may be twice as high as the reference yields easily.
I bought say the product is mainly due to the low price and needs that I am really, really happy!