So, what exactly is a ride-on fly mask? It is a cover, usually made of mesh, that fits over the horse’s head. It has holes for the eyes and ears and sometimes even extends down to the nose. The primary purpose is to shield the horse from flies and other flying pests that can cause irritation and potential health risks. The role of a ride in fly mask for sale in promoting horse comfort should not be undervalued. Flies can be a stubborn nuisance, creating discomfort and, in some cases, leading to serious health issues in horses. When a horse is free from the irritation caused by these insects, it experiences less stress, leading to better overall health and performance.