If it's the shock-corded edges - the bit round the edge (I don't really know Fox products) then you can buy the stuff by the yard in Focus DIY, or maybe B&Q.
On the new Ashford Tackle website www.ashfordtackle.co.uk we have just purchased a bulk supply of High Quality, durable bedchairs from Prologic. We have done a superb deal with Prologic, and you may find the purchase of one of these 6 legged beds a better alternative than repairing your existing one.
Please visit the new Ashford Tackle website and let me know what you think?
Tight Lines.
Ray.