Apparently, the request for our experience with inserts (or liners) is one of the most frequent from readers. Are they really needed, do they help to keep warm, which one is better to choose and which one is not worth paying attention to. The fact is that there is an only one-liner in our arsenal, so we can’t say that “we have tried this, that and that, and this one is the best among them” today. At the same time, we can share our general attitude to the inserts and share the experience of using the only one that has been travelling with us since April 2017.
General Info: Crampons
Hiking, classical or technical mountaineering/alpinism, ice climbing, mix – in all these sports you can not do without crampons. Without this device, it is challenging to safely and confidently navigate on ice, snow, firn (caked thick snow) and icy rocks.

The following graph and table is the actual itinerary that our team followed on Spring 2010 Everest Expedition. The actual itinerary followed by an Everest Expedition team will vary based on the year as a result of weather and the climbing team members. The largest weather factor is the beginning of the monsoon season and the position of the jet stream in the Everest region.
This graph depicts the day by day elevations of the various locations along our route to the Summit on 2010 expedition.
The following is a list of the elevations in feet and meters for the villages, camps, and waypoints along the route to the summit of Mount Everest via the South Col Nepal Route.

Elevation: 8,850 m (29,035 ft)
GPS Coordinates:
Longitude: 27°59′17″N
Latitude: 86°55′31″E
1st Ascent: May 29, 1953 Edmund Hillary and Tenzing Norgay
The following is a list of the camps and waypoints along with pictures and descriptions from Base Camp through the Summit of Mount Everest.