A protective cover for optical means, such as binocular optical means, having a pair of exposed lens portions which are spaced apart, comprising first and second cover bodies, each having a lens cap portion for being removably secured over a lens portion of the binoculars. Each of the cover bodies has a connecting portion extending from its cap portion. An attachment means is provided for securing the connecting portions of the bodies to the binoculars at a location intermediate its lens portions. The attachment means allows movement of each of the cap portions between a first position proximate to one of the lens portions and a second position away from and intermediate the lens portion of the binoculars. The attachment means urges each of the bodies towards its second position upon being displaced therefrom, so as to avoid interfering with the binoculars when in use.