I was waiting patiently for this to come back into stock and it hasn't disappointed. Very robustly made, fully water proof cover and great insulative properties.
I previously used a clever spa thermal jacket with a light weight waterproof cover but it still let water in and the cover got soaked and heavy. Even in light rain the clever spa soaked up water from the floor so was often wet.
The LayZ Spa covers waterproof outer hem rolls under and inside giving it protection from ground water.
Great bit of kit.