7 V Battery heated flannel shirt brings ultimate comfort and heating performance while featuring armor pockets for additional safety. Utilizing premium cotton outer shell fabric and patented Microwire heating technology, this great vest warms up in seconds with a touch of a button and provides hours of continuous heat to keep you warm and comfortable on your ride. Designed to uphold various weather conditions with a mesh liner that provides breathability in warm or hot / fall or summer season. Breathable, flexible and highly durable to withstand extended use and added under arm vents add comfort for warmer conditions. Outer shell is bonded to a mesh lining which provides added comfort with an excellent feel. Premium Cotton Outer-shell. Two front chest pockets with snap button closure. 135°F Maximum heat. Active heat retention technology and heats for hours. Attaches to your belt/pants to prevent lifting. Tri-zone heating system located on chest and back. Dual front closure with snap buttons and hidden zipper. Under arm vents on each side. Comfortable and stylish fit. Battery integrated temperature controller. Battery and Charger included.. Armor pockets on back, shoulder and elbows (armor not included).. Three Microwire heating zones: Chest (2), Back (1).. The battery has 4 heat settings as indicated by lights and Heat Times:. 100% (4 red/blue lights) - 2 Hours. 75% (3 red/blue lights) - 3 Hours. 50% (2 red/blue lights) - 5 Hours. 25% (1 red/blue lights) - 8 Hours.