Features: -Easy to clean, machine washable. Be sure to remove the battery before washing and insert the battery connection cable into the battery bag (please note that the battery cannot be washed). -The battery bag has a button design to prevent the battery from falling out during activities. -The heating element is made of insulating material and has been rigorously tested to safely heat and protect your feet. -Available in sizes 8-13.5, suitable for both men and women. Suitable for a variety of outdoor activities such as hiking, skiing, cycling, camping, etc. -It is an ideal gift for parents, lovers, friends, classmates, etc., bringing them warmth and enhancing your relationship. Specifications: .
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