I'm sure I'll draw the ire of some, but I've carried binos all over Texas, Western (wet) Oregon and Washington, Eastern (dry) Oregon, Maine, Florida, Kansas, and a few others and here's my suggestion.
What I've found is that in foul weather (rain, dust, mud) where you're primarily rifle hunting at distance or from a blind or bow hunting you want a chest harness that is mostly used for keeping them clean and secure. Think of this as "I don't need to be on and off the glass in a hurry" mode.
When you're in the phase where you're quickly jumping from glass to drawing a bow or spot and stalk with a rifle situation, the Rick Young bino harness that many on this forum champion is hard to beat.
It's fast, quiet, stretchy, tight, light, and has multiple carry options. Side hip carry, chest carry, ... just watch the videos. It's a winner.
So here's the hybrid if you're not sure.
Wear the full bino pouch chest harness and strap the Rick Young right over the top. You won't even notice. The Rick Young attaches on the sides and most bino pouches are an over-the-top flap.
In this mode, if you're on and off the glass alot, the Rick Young will still hold it tight to the chest - on top of the chest pouch or wherever you want it! The pouch will stay in place, the glass will stay in place. You put it in the pouch when not needed quickly. It's versatile.
In this mode, when you're wanting to stow the glass, keep out the rain, dust, mud, or whatever, you can tuck it right into the bino pouch and close the lid for weather protection with the Rick Young still attached.