Question

Why do mountaineers wear jackets to keep them warm while ascending Mount Everest?

Answer 1

Answer:

You'll need a windproof, breakable jacket and a medium/heavy jacket full of down or synthetic fill. If you can find a jacket with an insulated hood that's even better. You'll need a 200 weight fleece as a warm layer, a down/synthetic sweater/vest and a couple of lightweight shirts; both long and short sleeved.

Explanation:

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Answer 2

Answer:

The Jacket Name is DOWN SUIT.

A down suit is essential for Everest, Lhotse and Makalu and is preferable for Cho Oyu-Shishapangma but if you go for down pants and down jacket ensure the waist area is well protected. The down jacket should be one of the thickest made. Something thin like a North Face Nuptse jacket is NOT good enough.