Mountaineering Boots Insulated plastic boots are required for ascents on Mt. Rainier at this time of the year. They provide the best insulation and a rigid platform for kicking steps and fitting crampons. If purchasing your own boots, size them large enough to accommodate heavy socks with liners. Allow plenty of room for your toes. Those who are planning for a high altitude expedition will want to choose a boot with a cold weather liner that does not absorb moisture.
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VIDEO: Plastic vs. Leather Mountaineering Boots with Peter Whittaker and Ed Viesturs.
VIDEO: Mountaineering Boot Fit with Peter Whittaker and Melissa Arnot
The two most important factors when purhcasing a boot are 1) it's intended use (where will you be climbing) and 2) ensuring a proper fit.
Koflach
Arctis Expe
Product Video
La Sporttiva
Spantik
Booties Goose down or synthetic fill. These are a nice option for evenings at camp.
Forty Below
Camp Booties™