The adjustable chest buckle can be adjusted freely and will also reduce shoulder burden
In stained water, I go with bright whites, fluorescent chartreuse, or glow because I want fish to see it when Im fishing fast
You can read about the flies I recommend for brown trout here
Try these shades when green is a bust: Pearl and silver soft-plastic baits Black-gold, black/grey-pearl, and blue-silver hard-baits Trolling crankbaits finished in funky combinations with pearl, pink, black, and orange In tannic water, purple baits are a must
I use CamelBak bladders, but maybe the Osprey reservoirs work better in the space since they are a little different design