) All riders report better performance from the ThinLine Pad. ThinLine is designed to make the best horses go better and to absorb the movement of the seat, putting you and your horse closer together. If you have a horse with a sore or sensitive back, this pad is guaranteed to deliver immediate results. The contour pad fits most close contact and dressage saddles up to 18”. This pad measures 25.5” wide from flap to flap, 21.5” long from flap to back, and 14.5” across the seat.