Probably recommended but I don't know.
If looked after properly I think they last. I always hang mine on a coat hanger. The foam inside does breakdown but it does depend on how much use it gets. Mine has had lots of use and I've had it about 4 years now. The fabric on mine at the back on the base has worn and you can get replacement fabric covers but it's nearly as much as buying a complete new BP. Such a rip off.
The original BP that had foam strips in them, I have seen a BP where it all dislodged. But the newer ones that are complete foam sections seem much better.
If looked after properly I think they last. I always hang mine on a coat hanger. The foam inside does breakdown but it does depend on how much use it gets. Mine has had lots of use and I've had it about 4 years now. The fabric on mine at the back on the base has worn and you can get replacement fabric covers but it's nearly as much as buying a complete new BP. Such a rip off.
The original BP that had foam strips in them, I have seen a BP where it all dislodged. But the newer ones that are complete foam sections seem much better.