Aquatech SS-300 rain cover for Nikon and Canon 300mm lenses is made of high-quality three-ply waterproof, breathable fabric. Features: Tape seam sealed Quickly apply or remove cover with zippers Watertight seal around lens front Enclose and moisture protect your camera body and lens with its one-piece design See camera functions through waterproof view windows Access camera controls through waterproof sleeve Protect viewfinder with eye piece cover flap Color: Blue Specification: Requires eyepiece.