I wear my bino harness and a day pack pretty regularly.

I am mostly a tree stand (climber) and shooting house hunter in the southeast. In either situation, the bino harness gives me a handy place to keep my binos in easy reach. No need to hang them from a hook in the tree. This helps me keep the movement down when I reach for my binos.

I am currently using the AGC KISS with the MAX pocket (pocket on the bottom). This version doesn't have the extra zippered pockets on the side and front which keeps the bulk down. It does have little mesh net "pockets" on the sides. These work perfect for holding a bottle of wind indicator on one side and a few ammo cartridges on the other side. I keep a lens cloth and my rangefinder in the floorboard pocket.

After researching the various offerings,, this was the first harness I've tried and it met my needs well so I haven't picked up any other versions.

https://alaskaguidecreations.com/products/k-i-s-s-m-a-x