Opticron 37mm BGA Binocular Rainguard

Fits snugly on my 37mm eyepieces without slipping off, and the polypropylene material feels tough enough to handle being tossed in my pack. No more fiddling with a separate cap that falls off mid-hike.

Finally, a rainguard that actually stays put on my binoculars without falling off. The polypropylene material feels sturdy enough to handle being tossed in my pack.

Fits perfectly on my 37mm binocular eyepieces and snaps on tight so I don't have to worry about it falling off in my backpack. The plastic feels sturdy enough to handle a few drops without cracking.