Equestrian Helmet Cover - Black Dog 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. Most covers are also available with a built-in plastic visor for Skull-Type or Eventing Helmets. Just give us an email if you need the visor or don't want the bow. Multi-Color Stretch Nylon Lycra-Spandex. Hand Wash. No dryer, no heat, no bleach.