BOT are a Swedish brand, so worth remembering that in Europe they measure rug sizes from wither to tail, not center front to tail. It can be confusing. I have mesh rug, and leg wraps for my TB - they are to promote circulation and I am very pleased with results - no filled legs after a hard day...
I was searching for Magic Cushion and found this - just wanted to say that Magic Cushion will not test - I have checked as I wanted to use it for my horse. there is nothing in it that is prohibited in any discipline.