NWOT Arc’teryx ultralight and compact vest. Perfect for running, hiking or cycling. Perfect for chilly fall days! Designed for trail running, and weighing a scant 70 grams, it provides core protection from wind and light precipitation. The superlight nylon material, Lumin™, balances wind resistance with air permeable comfort and has a DWR finish to resist light precipitation. Weight 70 g / 2.5 oz Intended Use: Running / Training/Fitness