Details Ultra-light, incredibly warm, and extra cozy (thanks to the sherpa-lined hood), it's the perfect vest to toss over a hoodie or layer under a parka for effortless cold-weather dressing. Complete with our signature BisonShield™ insulation made from salvaged bison wool. Shell and lining: 100% recycled polyester Insulation: 50% bison fiber, 50% wool Lightweight, fully-lined vest with sherpa-lined hood and lower front patch pockets with snap closure. Wave design quilted exterior. Models are wearing a size S Machine wash cold, tumble dry low Made responsibly in Vietnam