Heated Bodywarmer Under Jacket, Cycling, USB, Graphene Heating Zones, Lightweight, Black, S to 5XL, Winter | Sansoti

Twenty minutes of cycling at two degrees, without four layers

The winter commute is too short to warm up and too long to stay cold. Another thick sweater under your coat means that within fifteen minutes, you’ll be sitting in an overheated office wearing clothes you can’t take off. This heated body warmer to wear under your coat solves that differently: a thin, lightweight layer with graphene heating zones that you switch on for the ride and off when you arrive. It runs on a USB power bank in your coat pocket, so there’s nothing to charge in advance except the power bank.

Why this works better on a bike than an extra sweater

• Slim fit: fits discreetly under a coat without restricting your arms when steering.
• Switch it off indoors: turn off the heat instead of taking off layers at work.
• Zones on the chest and back: warmth for your torso, where the headwind hits hardest when you’re cycling.
• USB power bank in your pocket: the same power bank you use for your phone; nothing extra to charge.
• Adjustable settings: higher in freezing weather, lower in November, so you don’t arrive sweaty.
• Black, S to 5XL: discreet under any coat, in eight sizes.

As a base layer or outer layer

The body warmer is thin enough to disappear under a coat, but in moderate cold, you can just as easily wear it on its own as an outer layer—in October and March, that’s often enough. For cycling, choosing the right size is most important: choose your usual size if you’ll wear it under a coat, and one size up if you want to wear it over a sweater. The fabric is breathable and wicks away moisture, which matters when cycling because you warm up while pedaling and then cool down while waiting at a traffic light. The power bank is not included with the vest; a flat power bank is more comfortable to carry in your pocket while cycling than a bulky one. The heat comes from graphene elements, which reach temperature within minutes, so you can switch it on when you get on your bike.