Warmth for weight
The Langtang kept us toasty on summer peakbagging trips (as a stand-alone) and in subfreezing, shoulder-season hikes (under a shell), thanks to the 700-fill duck down in the chest and back. But the stretch-polyester sleeves mean it offers better breathability than a full down jacket during high-output activities. Pertex Quantum shell fabric covers the core and resists light precip.
The two-way stretch arm fabric has great range of motion for scrambling, and it’s tougher than it looks. “The sleeves were undamaged after some of my more inelegant moves that involved jamming my arm into cracks,” says one tester after a climbing trip in Colorado.
The hood is the same uninsulated stretch material and provides adequate protection from wind on gusty ridgelines, but you’ll want to add a beanie in chilly conditions.
$199; 13 oz. (m’s M)