Neat and tidy design: lightweight and insulated, suitable for multiple wearing styles and freedom of movement; waterproof and windproof.Keeps your body and hands warm: 4 carbon fibre heating elements generate heat at the collar, mid-back and under the two pockets to provide core warmth. Adjust the 3 available heat settings at the push of a button.Fast and long-lasting warmth: 7.38V CE/UL certified battery heats up quickly in seconds and lasts up to 10 working hours on a single charge.Great for all occasions: Perfect for the daily commute, walking the dog on a crisp autumn day, cheering on your favourite rugby team, wearing under a winter jacket, or even in the office when it's too cold.EASY CARE: Machine washable; heating element and vest construction can withstand 50+ machine washes.