Training in transitional seasons calls for a versatile layer like INOV8’s Men's Full Zip Windshell Jacket. An ultralight, breathable, & packable layer, it blocks out wind & protects from light moisture. Made for movement, it has ventilation zones under the arms & on the back for temperature regulation. It features a hood, drop tail hem, & thumb loops to provide extra coverage & warmth. When not in use, the hood can be secured with a snap button to stop it flapping as you run. The entire jacket stuffs into the chest pocket for so you can stow it in your vest or pack when the weather improves.