I was going to suggest that quartersheet but not sure if OP can get it. Maybe check Ebay?
I have that Quartersheet and mine is older than old. It was a Christmas gift to me when my second OTTB was still alive, so has been around for a long time and seen a lot of horses… Unfortunately 2nd TB was a shrimp (72) and it doesn’t fit any of my newer TBs too well, but I second the quality is very good and it has not deteriorated over time despite lots of neglect and abuse. I almost bought the larger version for my 81 TB when Dover had their tent sale. It’s still just as thick and well made. FYI I think that the drop on these are a little small - so if you have a big horse go with a bigger size or it looks like a mini-skirt on them.
I ended up getting the Amigo quartersheet instead, only because it had a waterproof backing and it always rains in the fall when I ride. I also sized up because IMHO the Amigo has the same unique problem - shallow drop and mini-skirt appeal :lol:
Amigo - I got mine in Excalibur. Used it all last fall/winter and very happy with it:
http://www.adamshorsesupplies.com/amigo-competition-sheet-203360