The breathable flex shield airlite fabric is extra light and stretchy it regulates your body temperature and follows every move you make so this featherweight softshell jacket always feels great to wear on your outdoor training sessions when the weather is constantly changing between sun wind and showers the flyweight will keep you dry and agile it also packs down to nothing so it will fit in your waist pack and on evening training sessions the reflective detailing ensures you stay visibl