Aside from feeling toasty warm, you wouldn't know you were wearing it.
Heated Vest for Land Surveyors
Keep warm. Improve productivity.
The ewool® Heated Vest is the most powerful and simple to use heated mid-layer in the world. Cold is no longer an obstacle with this most advanced, high-density, full-coverage heating system. Purposefully simplified for worker efficiency, you get instantaneous, all-day heat with maximum maneuverability. The ultimate life-hack in professional heated workwear.