The Fieldsheer® powered by Mobile Warming™ heating technology Adventure Heated Jacket is built to take on the harsher conditions of winter. A 4-way stretch soft outer shell deters rain or snow with its Rainguard® waterproof liner. Protect your personal belongings with the chest storage pocket featuring a waterproof zipper. The Adventure Heated Jacket features our new 7.4-volt Powersheer™XL Plus Rechargeable Lithium-Ion battery, offering extended heat times and a USB charging port to charge your devices. Through the free MW Connect™ app, you can quickly toggle through all connected Fieldsheer® powered by Mobile Warming® technology garments and adjust individual heat levels to your liking. MW Connect™ app allows you to get real-time updates on battery levels and update your garments when new firmware becomes available. The Adventure jacket provides instant heat when the weather turns cold, keeping you outdoors and enjoying your favorite activity. This garment runs small. We recommend you consult our size charts before purchasing and consider sizing up. Fieldsheer Heated & Cooling Apparel. Work and play in year round comfort.