The Montane Trail Star Running Jacket are lightweight, easily packable and features a contoured body fit designed to reduce excess fabric. The jacket are made of AEROFLYTE fabric, one of Montane's innovative technology that allows body heat and perspiration to escape during high exertion activities in cool conditions and it also features a durable water repellent finish to help you stay drier. For comfort and ventilation, Lycra Bound Cuffs and Hem are designed to be wide enough to be pulled up over forearms to aid cooling and the hem to help minimising weather entry and tailored to hug the lower body. While 3M Reflective Scotchlite help you stay safe and seen during those night runs.