These high-quality Half Pads are made of 100% natural Australian Merino lambskin. The wool is much denser and softer than the older sheep's wool used in many pads. The spine is clipped short, relieving pressure and allowing airflow. Half Pads are best-sellers because they can be used with any type of saddle. They can be used over a thin saddle pad or directly on the horse's back. In addition, the half pad has two slits at the front so the saddle pad's D-ring straps can be threaded through the half pad.