Exercise rugs- blonde question

[ABE]

Blonde question but my mind has gone blank- if my horse wears a 7ft rug what size of exercise rug will she need?

 

[Lollii]

I'm not sure what size I have, my horse is a 7ft rug, I brought the largest size they sell in a excercise rug, I think they actually sold it in size XL.

 

[Birker2020]

You need an exercise sheet measuring 60".