This blanket is strong with 1200 denier polyester. Comes with a neck, which is removable. The rug can be expanded with the Horseware Liner system. The blanket is lined with smooth nylon to prevent chafing. This blanket is waterproof and breathable. For a good fit, the Leg Arches (gussets). Has a double chest closure, cross surcingles and a single leg strap. Plus the blanket has a tail flap with reflective stripes. Due to the expansion options, you can go in all directions with this outdoor blanket.