The best layer you can pack, for really any adventure, is a hardshell jacket. There are expectations, of course, but really only for those who live on the equator. A hardshell is a durable ...
Huge amounts and variation of storage, great levels of insulation, and superb value, but not the best fit or breathability.
With the ban on PFC use in waterproof materials, the use of Shake-Dry technology in cycling waterproofs ... while on the move, the jacket isn't 'fully fitted'. Being a hardshell, there is still ...