The Columbia Men’s Grand Trek Down Jacket is a down insulated jacket for everyday winter wear. Expecting lots of snowfall or wet, slushy conditions? No problem. This jacket features a waterproof breathable exterior to seal out moisture and keep the 650-fill down feathers lofty and warm. Welded Heat Seal baffles keep the down from shifting to prevent cold spots, and an Omni-heat reflective interior improves heat retention without any added bulk.