I’ve finally started wandering above treeline in the Rockies in the winter (windy!!!) and have quickly come to the conclusion that I am in need of some hard shell pants that can be quickly put on over winter boots as I get to treeline. I have a super heavy duty pair from REI that I bought a decade ago — they work fine, but are needlessly durable (I’m not bushwacking) and weight like 1.5 lbs. I love the full zip of my REI pants — super easy to put on/off without even having to step out of snowshoes or XC skis.
The first choice I need to make is full zip vs 3/4 zip. As stated above, full zip is great since I don’t even have to unbuckle skis/snowshoes to get them on. In theory, a 3/4 zip should allow me to easily get them on over bulky ski/winter boots — though I’d have to at least take off my snowshoes/skis. That doesn’t seem too onerous though. Anything less that 3/4 zip seems like a no go though. Anyone have any experience/opinion about getting ski boots over 3/4 zip pants? I’d probably start the day without them since getting to treeline should keep me plenty warm. Then put them on at treeline and keep them on until I get back to treeline. If they vented well enough I might even keep them on for the whole descent back to a car.
In an ideal world I’d get pants that could work for 4 seasons; i.e. be reasonably light enough for summer trips were I have a reasonable expectation or rain/wind. In that case taking them on and off over trail runners would be super easy.
Some pants that seem to be reasonable are:
REI Co-op Rainier Full-Zip, $90, 12.7 oz
Marmot PreCip Full Zip, $70 (on sale), 12 oz
Berghaus Paclite 3/4 zip, $140 ish, 8 oz
The REI and Marmot pants are a bit heavier, but are full zip and have what look like #5 molded YKK zippers which are pretty robust. The Berghaus are significantly lighter, but are only 3/4 zip and have waterproof zippers. Do waterproof zippers work well in cold conditions? (not crazy cold — probably the lowest temperature I’d be in is 0F.) The Berghaus seems appealing from a weight perspective — so long as they go on easily over boots and don’t have zipper issues.
I’d be interested in any thoughts or opinions folks had. And while I don’t have a hard price limit in mind, dead bird is probably far beyond what I am willing to pay (or at least what my wife will tolerate!).

