I’ve been using the Montane Prism for exactly this role. I have two now – the oldest being 12 years old. Might be time to retire it…
That your Mountain Rescue special? 🙂
I’m on my second Prism. I keep thinking to retire it, but there’s no need. I thought the insulation had given up, until I used it as an active jacket in the really cols, snowy weather. It’s great and quite bombproof.
However, I used a Rab Microlight Alpine down jacket for touring / bike packing duties as it’s better on the packed size / warmth ratio. It’s not as bomber, though. I would probably go for the Decathlon one to abuse.