The ultimate alpine mid layer, this lightweight, 800 fill down jacket delivers exceptional warmth with unrestricted freedom of movement. INSULATED: Insulation traps hot air for reduced heat loss and increased warmth. GOOSE-DOWN: High-fill power goose down ranging from 550 to 900 fill, the highest quality commercially available. PACKABLE/STOWABLE: Highly-compressible layer for emergency use or travel. …