Light pants. Kryptek Valhalla or sitka ascent. Or go heavier (any brand's version of softshell pants) if they have thigh vent zips. Bring merino long johns if static below 50. Bring puffy pants if static below 35. Light shirt/sun hoody. Kuiu/Sitka merino 120 work well, or any Light synthetic. I only do the thinnest wool so it can actually dry. The key to drying wool faster is to put a synthetic layer over it. Here's the one piece of clothing system technology I wouldn't go without - POLARTEC ALPHA or PRIMALOFT EVOLVE. Fastest drying warmest best fleece layer that exists. Go through the ice and walk it dry, amazing. Outdoor research used to make good pieces that are discontinued. Beyond clothing does also. Sitka ambient is where it's at now. Puffy for sitting still below 50 degrees. Down or synthetic. Outdoor research Superstrand LT is synthetic but as light as down, breatheable but still warm. My latest layers at 12,000' with frosty mornings were 120 weight wool leggings and top, kryptek Valhalla pants, sitka kelvin active hoody, OR superstrand jacket, Beanie, mechanix gloves, thin darn tough socks, arcteryx Konseal approach shoes (synthetic mesh upper). That's it. The thinner the material, the quicker it dries, and the warmer you stay. That's my philosophy.