The Millet Evole 700 HD Hooded Jacket splits the insulation job between two materials instead of relying on down alone. Treated K Dry down fills the body for warmth and loft, while REPREVE recycled synthetic insulation takes over in the zones where sweat and moisture collect fastest, so the loft never collapses the moment things get damp. The jacket compresses into its own pocket for storage, and its mountaineering hood fits under a helmet without needing readjustment mid-climb. What Our Gearhead(R) Experts Are Saying:"I've slogged through wet snow on the approach and stayed warm and dry underneath, because the synthetic panels under my arms hold up against sweat in a way down alone never could. That's the difference between packing an extra layer for the descent and just zipping this one back down."