This waterproof exercise sheet is designed to keep your horse warm and dry during exercise in the rain or cold weather. It has a waterproof, breathable, 600D polyester outer and a soft fleece lining on the inside. It attaches via a hook and loop fastening at the wither and a removable filet string under the tail. A cut away area accommodates the rider's leg. For safety and visibility it has reflective piping and twin reflective strips on the sides. In navy and silver only.
As a guide, the exercise sheet sizes correspond to rug sizes as follows:
4ft 6 exercise sheet = 5ft9 and 6ft rugs
4ft 9 exercise sheet = 6ft3 and 6ft6 rugs
5ft exercise sheet = 6ft9 and 7ft rugs
Here is some more detailed information on sizing: