- Soft cotton
- Constant temperature keeping warm, strong air permeability, comfortable to wear.
- Battery pocket design, intimate and convenient.
- External 2200mAh power bank.With 6.5 hours of company a day, it can warm your feet even in the cold winter and keep warm all night.
- Far infrared heating film.Nanofiber generates heat and distributes the heat evenly.
- Intelligent temperature control, rechargeable and adjustable temperature, washable.Electric Heating Warm Socks Rechargeable 3 Model Adjustable Temperature Heating Socks for Outdoor Thermal Equipmen.