I leave in 5 days for a 2-month bike trip. I start in Vermont, and then head north to Canada, and then west to the Canadian Rockies and maybe Vancouver, if I can beat the heavy snow.

I am debating on bringing my Brooks-Range Itso Softshell jacket with me… I just can't really nail down the logistics of why I should have it. I have room on the bike for it, but I like saving weight.
Expected temperatures will be very warm until about mid-september, then I expect it to get cold quick.
Here's what I'm bringing so far:
Base:
Ibex Lightweight Wool LS Crew
Ibex Heavyweight Wool LS Zip-Neck
Insulating Layer:
Arcteryx Atom SV
Windshirt:
Arcteryx Squamish
Raincoat:
Marmot Super Cell Paclite
My only insulation, really, is the arcteryx jacket, and that's more for camp and sleeping- I likely will never bike in it. So I really don't have a "fleece" or active layer for cold weather. In theory, the two wool shirts and windshirt were my plan for biking in 32º weather. Is a softshell a good addition to this toolbox as a cold weather active layer, you think?
Thanks for feedback!
Max

