Prevent losing crucial body heat during cold days or nights in the backcountry with this 550-fill down insulated jacket that features a baffled construction to prevent cold spots and ample synthetic insulation at the sides. . . . Classic 550 fill down vest with synthetic-insulated side and shoulder panels. . Relaxed fit. . 550 fill goose down (certified to the RDS by Control Union) throughout body and sleeves; 150 g Heatseeker 191929348516 31046200081 NF0A2TCD