When Your Pace Is As Brisk As The Weather. This Running Jacket Combines Lightweight Insulation With Integrated Ventilation For Warmth Without Overheating. Designed For Running. Classic Fit Falls Away From Your Body With Room For Layering. Zippered Hand Pockets With Hidden Phone Sleeve, Stowable Hood, Reflective Design Elements, Mid Warmth Is Designed With Zoned Rds Down Or Primaloft Insulation To Regulate Body Temperature.