GFS Bridles?

Hi! Does anyone have any experience with the GFS line of bridles? I was considering the GFP Premiere Prosperity bridle.
https://www.gfsriding.co.uk/products/gfs-premier/prosperity-bridle

I’m in the US and have been looking at some UK sites for ordering. They don’t seem to have a sizing guide. I was curious if anyone has this bridle or knowledge with this brand and the quality of leather?

Thanks!