There's no way to outlast the weather without the right layering system. Designed to serve as the core of your late-season layering system, our Nucleus Heated Vest helps maintain your body's core temperature for you, even when temperatures plummet, thanks to its adjustable heat settings. The garment includes three heating elements: two across the back and one on the stomach. This vital next-to-skin layer delivers low, medium, and high options, each equipped to preserve your mental fortitude and physical performance. Powered by a single 10,000mAh rechargeable battery. 60% Polyamid 23% Polypropylene 17% elastane. Anti-pilling helps the garment remain smooth and soft even after repeated wash and wear. Anti-static prevents the buildup of static electricity which causes fabrics to cling next to skin, attract dust and lint. Silent, easy-access power button and battery pocket located at the front right hip make choosing warmth settings simple. 3 heated elements. 2 heating elements across the back and 1 on the stomach. Each element is powered by a single 10,000mAh battery (included). Batteries recharge to full capacity in as little as 4 hours via a charging cord (included). 3 heat settings keep you warm in any conditions: Low (8h) Medium (6h) High 4h