mulceber
Moderator
IMHO, you could probably wear a fly-weight Irvin (or Aero Merino Irvin) in similar weather to your B-6.Haha! thanks Pa12...
I am particularly sensitive to cold, and I tolerate B-6 well from 12-13°C. I have been wearing it almost every day for 1 month (alternating with the B-10).
But the Irvin... it's truly a legendary jacket. How can we live without Irvin ?