Equestrian Riding Helmet Cover - Blue Lightening,OS Protect your helmet and show your colors! One Size fits most English and Western Riding Helmets, including Troxel, GPA, IRH, International and more. The Visor Pocket fits over helmets with a built in brim. Multi-Color Print Stretch Nylon Lycra-Spandex. Machine washable. No dryer, no heat.