Sub Zero Lightweight Thermal Unisex Down Body Warmers are very technical and pack compactly in to their own small stuff sack. The down-proof ripstop shell fabric is manufactured from an ultralight polyamide fabric that is extremely breathable, windproof and water repellent. Only the finest grade of ethically sourced European goose down and feathers are used in the down gilets production, with a fill of 90g making it one of the warmest vests in its class.
Don't worry about leaving your warm bed in the morning, wear a duvet all day!