I bought this in 2019, and used it a total of maybe 20 times. This jacket is insulated with synthetic down 350g in the body and 150g in the sleeves to be exact. There are also ample pockets for warming your hands and your iPhone. 80/10 Eco Dwr Water Resistant Breathable Insulation: 350g Body / 150g Sleeves Zippered Hand Pockets: The hand pockets have zippered closure to keep loose change and keys in place. Sleeve Pocket: A small pocket on the sleeve of the jacket is quick to access whatever might be stashed there. Great place for a season pass or a small snack. Helmet Compatible Hood: This hood is big enough to fit over pretty much any helmet and can cinch down around it so its secure.