The PrimaLoft Gold insulation is surprisingly warm for how thin this packs down, and I've been stuffing it into my running vest for chilly morning starts. The stretchy side panels breathe well on the uphill sections so I'm not overheating.
Penelope★★★★★
Wore this on a windy ridge hike and it blocked the gusts way better than I expected for something this light. The PrimaLoft panels are warm without the bulk, and I could still swing my arms freely on the scrambles.
Hannah★★★★☆
Wore this on a windy ridge hike and the synthetic insulation kept me warm without overheating on the climb. Only gripe is the fit runs a touch trim through the shoulders, so size up if you layer a fleece underneath.