The Deerhunter Heat Undershirt With Zip-Neck Unisex offers unparalleled warmth with its rechargeable power bank and three adjustable heat settings, ensuring comfort throughout the day regardless of the weather. This innovative undershirt features an integrated heating system with two elements positioned at the back, targeting areas most susceptible to cold. Designed with a zip neck for easy wear, it is soft against the skin and machine washable, making it both practical and comfortable for everyday use. Powered by a rechargeable power bank for consistent warmth Three adjustable heat settings for personalized comfort Integrated heating system with two elements at the back Soft, comfortable fabric that is gentle on the skin Convenient zip neck design for easy wear Machine washable for easy maintenance Includes a pocket for the power bank Power bank not included; recommended 5,000 mAh capacity Suitable for both men and women Materials Shell fabric: 92% Polyester, 8% elastane