Fits mid and full size Vortex Binoculars except the Kaibab HD and Razor HD. The Vortex Binocular Rainguard keeps your binocular eyepiece lenses dry and safe from debris. The tapered, one-piece, rubber construction stretches for a tight fit, ensuring protection in any weather or environment. Conveniently attach to your binocular strap to keep within easy reach. Protected by the unlimited, unconditional, lifetime Vortex VIP Warranty.