An ultralight and highly packable down insulation designed to be worn over base and mid layers, and underneath a shell during hunting in cool-to-cold conditions, ensuring a warm core without compromising upper body mobility. Weighing in at only 7.2oz., the Grumman Vest incorporates the same advanced technology as the Grumman Jacket, now presented in a more compact form. Featuring 850+ fill treated goose down on the inside and a 15 denier Pertex Quantum shell on the outside, this vest serves as an efficient active insulation piece. When temperatures drop and glassing becomes essential, pair it with the Grumman jacket for the ultimate warmth combination. Features & Specs: Weight: 7.2 oz. (Large) Shell: 15 Denier Pertex Quantum Shell Fill Power: 850+ Fill Power Goose Down Down Treatment: HyperDRY DWR Treated Down Down Certification: 100% Traceable RDS Certified Down Insulation Weight: 3.05 oz Internal Cuff: Streamlined internal cuff Waist Hem: Elastic waist hem Zippers: YKK Zippers Storage: Stuff Sack Included Size in Stuff Sack: 8" x 4" x 3.5" Complete the kit with the Grumman Goose Down Pants Stone Glacier Grumman Vest Granite Grey 20008-GG in Gray, 2XL