Berghaus Men's Hyper Shell Jacket 100% Other Fibers Imported Hydroshell Hyper fabric is Super lightweight while ensuring waterproofness, breathability and durability Additional protection is achieved with the hood which includes a tab down feature when not in use The reflective heat transfers offer additional cooling properties while on-the-move This extremely packable jacket comes with its own stuff sack, to ensure you never leave it behind Lightest Full-Zip waterproof jacket in the world at 3.5oz (100g)