The men’s Salomon Bonatti WP jacket is super lightweight and functional built for running. MotionFit technology enables the Bonatti WP jacket to fit and flex where it needs to. At only 130 grams you barely know you are wearing it. It will pack down into it’s own chest pocket and takes up next to no space in your running pack. The Salomon Bonatti WP jacket is seam sealed, waterproof and has a hood which is everything you need for mandatory race requirements.