I previously used the Super 9's (blue/orange) for general mountaineering and loved them to death. My replacements were a pair of the insulated (Thinsulate)Super 9's (black/neon yellow). They have been fantastic for ice climbing in SW British Columbia and also in the Rockies, including some -25 Celsius mornings. They are rigid enough to create a nice stable platform. As far as size, you just need to try them on.