Wearing layers of clothing can restrict their movements and increase the risk of falling. With the HarnessWarmer, you can stay warm, sleek, and mobile in a user-friendly way. The lightweight, breathable & washable patented smart textile is made of silver-coated conductive yarn and polyester yarn recycled from 2 PET bottles, and fabricated by 3D knitting for zero wastage to integrate sustainability in all aspects. Heat energy is generated from resistance when plugged with a rechargeable slim power bank. The control & mobile app provide 5 heat-setting levels with a 15/30/60-minute timer.