The direct competition of the Carinthia Defence 4, is the Snugpak Special Forces 2.
I understand why most European NATO armies issue the Defence 4. But for civil use the nearly identic SF2 is in my opinion the better option.
The main Difference between both is that the SF2 has a warmth collar, but the Defence 4 hasn't it.
That means, the relation between warmth retention and weight & pack volume of the SF2 construction is better than the construction of the Defence 4.
That's of course less important if you wear winter clothing in the sleeping bag.
The Carinthia System (I mean the combination with the Tropen) is a bit easier to use, the SF system a bit more comfortable, especially if you just wear merino base layers instead of a complete field uniform.
The Carinthia compression bag is by far superior than everything else I have seen. But it can also be bought separately.
I carry the in my opinion superior SF2 (or the complete SF system) in the superior large Carinthia compression bag.
I simply choose the best constructions and don't stick with one brand.
That isn't needed in a Kajak and perhaps the SF compression bag fits well into your rucksack. If not I suggest to get the large Carinthia compression bag additional for rucksack use, or you just sell the Snugpak compression bags of the SF2 and the complete system and replace it with the large Carinthia compression bag.
I wrote about the both systems in this thread here:
Greetings from Orlando, FL USA! This is my first post and I'm looking forward to input from those of you across the pond with presumably greater access to UK military gear (although I'm working on acquiring some). I'm aware that the recent British lightweight bag was apparently inspired by the...
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