The Helly Hansen Odin Everdown Hooded Jacket has been tested for warmth, weather resistance, and packability in the mountains.
According to willwalkswales, this jacket is similar to synthetic insulated jackets like the Rab Xenon and the Keela Solo, but it's filled with down, making it lighter, more breathable, and warmer.
Testing the jacket in stormy conditions, including Storm Amy, and a campout on Carnedd Llewelyn, it proved to be very snug with an impressive warmth-to-weight ratio.
Note that the jacket has a short cut at the hem, which may have benefits but might not suit everyone's taste.
The Helly Hansen Odin Everdown Hooded Jacket reminds me of many synthetic insulated jackets I’ve tried in the past.
Author's summary: Helly Hansen Odin Everdown Hooded Jacket review.