ThinLine's felt saddle pad has a wither profile which is best for moderate to high withered horses and a spine-free channel, further reducing the chance of pressure points. This thin pad frees up more room for narrow or snug-fitting saddles and improves the comfort for horses even with saddles that are perfectly fitted. The ThinLine also ventilates, across the pad, allowing excess heat to move out from under the saddle. Most importantly, to your horse, is how this pad creates stability.