Matrix Sport Endurance Woolback Saddle Pad. The Matrix Sport Endurance Woolback Saddle Pad is specifically designed for endurance riding to offer the maximum amount of protection support and breathability required for intense long distance riding. These saddle pads are all-in-one pads made with linear quilt of etc fabric breathable/wickable barring and polycotton twill bottom. The Woolback pile is made of 100 Virgin Wool blended with a small amount of polyester to create a resilient pile and durable fabric. Virgin Wool is known for its superior moisture-wicking and heat dispersal properties. It is highly breathable as air circulates within the pile and easily passes through the woven backing. It is easily washable amd dryer safe. Made in the USA. Because this product is assembled especially for you it may take up to 8-10 business days for it to reach our fulfillment center. It may take up to 15 business days for it to arrive at your shipping address.