An ultralight shell helps keep you dry when you need it. Designed to be incredibly simple to take on & off as you run & easily stashes into the front pocket . Insulated, lightweight warmth Outer shell easily stashes in front pocket while you run Water-repellent finish helps keep you dry Jacket packs into the pocket for easy access storage Half zip lets you customize ventilation Fold over mittens with thumbholes provide optional warmth around your hands Reflective