The website says to machine wash cold and air dry. Personally I would gently hand wash. The first time I washed on a delicate cycle, some of the lettering rubbed (see photo) and some insulation hairs came loose. note: Purchased on a sale and was unable to return due to sale.Product copy from website: Trust us, it’s warmer than it looks. This surprisingly lightweight jacket is designed to keep you comfortable in temps as low as -10°F. The secret’s in our signature BisonShield™ insulation: crafted with salvaged bison wool that we intercept from the waste stream. Equipped with a weather-resistant recycled polyester shell to keep you dry and warm while keeping trash out of landfills.Features: packs up into travel pillow100% recycled polyester shellBison wool insulationEvan is 6'3" wearing a size M in BlackMachine wash cold, lay flat to dryMade in Vietnam