Comfortable thermal shoe insoles guarantee comfort for the feet not only during cold days, but they can also provide emergency assistance to people with blood circulation problems in the extreme parts of the lower limbs. Heated shoe insoles are therefore essential elements for winter trips, sports activities, fishing, or hunting. A simple heating system powered by batteries. The size of the insoles can be adjusted in the range from 35 to 46. To do this, measure the exact size of the foot by placing it on the insole and cut with scissors to the required size. The insert without cutting fits size 46. The thin power cables do not cause discomfort and are connected to the power supply placed in special foot straps with pockets for storage. The Velcro straps allow them to be attached around the foot.