The Summit Shell Jacketwas created to be the perfect shoulder season and mountain ride companion. Constructed from our stretch-woven Alpine shell fabricwith incredible stretch,breathabilityand moderate water-repellency but with the liner removed. This creates an incredibly light,packableand protective jacket that you canwearalmost asa long sleeve jersey in many instances. With 3 large back pockets,two wayzip and laser-perforated ventilation this jacket is incredibly versatile.