Till recently I have been very unenthusiastic about monoculars. I have sold many types and own a Zeiss 8x20 , none have worked for me.
Recently a mate was looking for a small bino for his kayakking trip and doing the City rounds I found a 10x42 monocular (branded Gerber, a local brand, but most likely this one
http://www.telescope.com/control/binoculars/waterproof-binoculars/orion-10x42-waterproof-monocular)
Oddly that was in the shop I used to work for...
The larger front element (42mm) and the large exit pupil seem to work for me. I will test that again when my mate comes back but it looked pretty good for the weight. About 10 oz.
Franco