I've now had 3 pairs of waterproof kayaking binoculars over the years, and 2 of the 3 developed internal misting/moisture problems; the 3rd, best pair I left inadvertantly at the launch site and of course they were gone when I returned--boo-hoo! Kicked myself all the way home.

I have had now a 6 X 30 waterproof Brunton monocular for maybe 6-7 years, and, so far so good. I still much prefer small good binoculars, and will get a pair sooner or later but the Brunton has served honorably--no misting and easy to store.