Cashel sets the standard for comfort in fly masks. Soft coated nylon micromesh makes the Crusader Fly Mask durable, soft and comfortable. The patented three hole cap and double dart construction hold material well away from sensitive eyes, lashes and temples without damaging the forelock. This provides a more natural and complete field of vision. The Crusader also blocks up to 70% of the sun's damaging UV rays, protecting horses from eye problems and sunburn.