I've got a Le Mieux one for my fairfax. They do one specifically for dressage girths (which are not good, I got a Nuumed one instead for my dressage) but the standard Le Mieux long girth covers fit perfectly. I got the 90cm one which fits my 48cm fairfax end to end. http://www.horsehealth.co.uk/lemieu.../lambskin-gp-jumping-girth-covers-brown-brown
Louise G those ones you linked up are straight, do they do a shaped one to match the fairfax girth or do you just use a straight cover on a curved girth?
They are straight but they are wide enough to incorporate the curve. The fairfax long girths aren't overly curved anyway. I really liked the fit, was about as near to perfect as I could find
I don't normally resurrect old threads, but felt I must comment on this one because of the misinformation from LouiseG which I followed and purchased a standard lemieux long girth cover for my long prolite girth. It DOES NOT fit. Do not buy one if you have a long prolite or faifax girth. I have a short prolite narrow guage girth and can confirm that the lemieux fairfax cover is fine on this, but I am yet to find one to cover my long prolite girth. This has been a costly mistake as I now have to either pay significant postage to send it back or sell it on eBay