HyperKewl Cooling Horse Blanket Two chest straps and two under belly straps secure the blanket to the horse Flexible shoulder material allows the horse to move with minimal restriction Provide 5-10 hours of cooling relief per soaking; extremely lightweight and durable Comfortable, quilted nylon outer w/HyperKewl Cooling fabric inner, and water repellent nylon liner, and blackTrim Equine Sizing Chart - Cooling Horse Blanket S/M: 14.1 - 15.3 Hands L/XL: 16 - 18 Hands