
Yes, the lining in the Octane does its job pretty good and I myself have ridden in pretty good downpour and the liner has kept me bone-dry. During winters, yes it keeps most of the cold wind factor down and offers pretty good warmth too. If you want a little more warmth in WINTERS, just wear a thin full sleeve cotton or woolen garments, and then the jacket over, it's complete bliss with this one.
Don't even try the same in summers

All in all, it's a pretty good jacket. I would say go for it.
Again, go for what suits and based upon your need.
Cheers!
VJ




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