Lightweight, packable vest that gives great extra warmth on chilly summer evenings or when trekking at high altitudes. Made from a pliant polyester fabric and lightly padded with high-performance synthetic PrimaLoft® Black Insulation RISE with P.U.R.E. Technology. A smart insulating garment that takes up minimal space in a pack and can warm when it is needed most. Two-way front zipper and two spacious pockets to warm hands in. Elasticated edging around arm openings and hem.