The Vac's Pro Pillow Equestrian Leg Wrap is made of machine-washable, woven cotton outer fabric with and extra-thick durable poly fiber filling. Both outer and inner materials are porous to allows air to circulate. The Vac's strong stitch design throughout prevents fiber from bunching up. Now with new contour corners for better fit and helps prevents the horse from chewing and pulling off. Great for stall and shipping use. Full 40" length. Packaged in pairs.