Sockliner Cycling Skiing Outdoor Sockliner Comfortable Support Non-slip Wear-resistant Durable Lightweight Sockliner, Health Care Product for Daily Wellness

Our self-heating sockliner contains water-absorbent resin, table salt, and extracts of herba Artemisiae Argyi. It can be activated quickly to keep you comfortable in cold weather. It's simple to use: simply install the sockliner inside the shoe. The sockliner is disposable and can be removed after the fever has stopped. And can be all-weather warm care, stable and reliable. Shoe Insole