I got this jacket as an alternative to another fleece, and with one winter/spring of use, I can say I love it. I have worn it as a midlayer when skiing in cold conditions, as an around town casual jacket, and as an outer layer during spring hikes. It seems to me that it is slightly warmer than a fleece, which may be partially because it is somewhat less breathable (though it does have some breathability). The reduced air flow compared to fleece is fine with me, because I like to keep the wind out when it's cold. The only potential caution I could offer is that the outer layer is very thin and seems like it would snag or tear easily. This is no doubt a design choice to make the jacket breathable, but it makes me cautious in the woods. If I were venturing off the trail, I would definitely put a more rugged layer over it. All features have trade offs, though, so the lightweight outer layer can't really be considered a negative. Overall, the Kooshin is an excellent, versatile jacket.
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