The Sullivan Supply Tough Tech Sheep Blanket is made of a durable 600D Ripstop exterior fabric. This blanket material is waterproof and yet breathable and designed with an interior nylon lining. The blanket is equipped with a mesh rear that is constructed with a heat press and double bonded stitching for increased longevity. Underneath is an adjustable nylon strap with an easy to use metal snap for a secure fit. The new and improved blanket is designed with updated sizing for a great fit. It can be worn by itself or over any body tube, making this sheep blanket great for any time of the year. Made of a durable 600D Ripstop fabric Designed with an interior nylon lining Equipped with a Mesh Rear Adjustable nylon strap with easy to use metal snap S : 90lbs-125lbs ; M : 115lbs-150lbs ; L : 140lbs-175lbs ; XL: 165lbs-200lbs Constructed using double bonded stitching for increased longevity Designed with updated sizing for a great fit