Strictly for high altitude and winter. It's very heavy. Reassuringly so, mind, but would be far too warm for many applications
Surely that will depend on what type of proshell? I've not even seen that Mammut jacket but I have now reviewed two heavy duty Marmot neoshell jackets and liked both of them but they're winter jackets to my mind - too heavy and bulky to carry that much.
The Gipfelgrat is a step beyond the Zion/Nabu. I tried it on in a Swiss gear shop last summer and nearly had to be revived, it was so damned burly!!
The weight of the Zion is continually misstated - I weighed mine for the review - 680 grams so only 100 grams less than the Mammut's stated weight.
What's wrong with heavy shell layers? Old 3 layer goretex was (is) perfectly wearable- have we all become so weakened by age that a jacket weighing the same as a bag of sugar is just too heavy?
All marketing if you ask me...
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