Mountaineering boots: These need to be stiff to accept a crampon and warm enough for your objective. Most climbers will go for an insulated boot with multilayered construction or plastic shell design. A shell boot lacks the snug intimate fit required for difficult climbing. [https://www.rei.com/learn/expert-advice/how-to-choose-mountaineering-boots.html]. Whatever you do, do not skimp on your boots. They are your foundation in the mountains.
Some clothing will carry over into other categories. For example, you might wear softshell pants in Kathmandu, for the trek and load carrying. If doing a lower elevation climb you might be able to layer thermal underwear underneath and stay nice and toasty. On an 8,000-meter peak, you might wear an expedition-weight down parka in basecamp and layer up into a one-piece down suit above 6,500 meters.