saw this in the comp bit, i cant afford anything like those makes mentioned!I have a pair of treadstone non stretch, look exactly like the more posh versions! I also used the bates webbers, the leather version of the wintec webbers which are lovely if you like to have a good, close contact to the saddle flap. They are non stretch too as they have a nylon core.
ones with the cores are good. have to say one pony i ride has synthetic leathers (anybody know the ones im on about, they are leather but the synthetic stuff) and we jump that pony quite often and his haven't stretched at all
i have no idea! they are leather and look and feel like it but my instructor said they were the synthetic type. don't ask me im the most rubbish person to ask to explain stuff!!