Unisex Electric Foot Warmer Adjustable Temperature Rechargeable Heated Insoles Multifunctional for Winter Fishing Hiking Camping. Made of safe and eco-friendly materials, these heated insoles provide optimal performance while prioritizing safety and environmental sustainability. Features include adjustable temperature, soft and elastic EVA foam construction, and trim-to-fit design for perfect sizing. Keeps feet warm during cold weather conditions, ideal for winter activities such as hunting, skiing, motorcycling, and walking outdoors.