A vest designed with a low profile, stretchy flexible fit, and lithium battery pack powered warmth with Bluetooth compatibility for app controls and onboard three setting heat adjustment so you can dial in your comfort. Cut to fit comfortably with stretch fabrics and stretch seams this will move with you under your winter jacket giving you warmth without bulk for freedom of movement and the freedom to stay out longer in the cold. Crafted from water and wind resistant shell fabric this is a vest you can wear on its own during the shoulder season, and thanks to its small footprint when packed up, take with you everywhere. Wicking quick dry fabric keeps your core dry and comfortable, while a fleece lined collar and fleece lined pockets are cozy and comforting. Snap-in the rechargeable batteries and you’re good for a day outdoors without having to bulk up in multiple uncomfortable layers. Extend your ski time, enjoy the snappiest of fall weather, take the chill off a damp spring day with warmth focused where you need it in this terrific addition to your cold weather arsenal. Nicely machine washable, quick charging, and packable… don’t go out in the cold without it!