Extended Foot Bag: The exterior of the foot bag is made of fabric that can lock in temperature for a long time. The elongated design can soak up to the calves and knees,and the trapezoidal design makes it stand upright and not easy to fall,more stable,and resistant to high temperatures. It can be poured into hot water at 100 degrees Celsius without being damaged and durable. Color and size: We have prepared 6 colors for you (dark blue,Baby blue,yellow,gray,pink,apricot),and the product size is (11.8 * 23.6 inches) Full package fumigation of the bundle mouth: The bundle mouth is fully wrapped and can be fumigated above the knee,fumigated to some important acupoints,with a insulation cover. The knee can be sweated to promote blood circulation,which is very good for elderly people to use Long lasting insulation: Long lasting constant temperature,even hot feet in 5 hours,aluminum film insulation layer for going out Soak your feet outside to remove a days Multiple usage methods: Foot soaking bags are suitable for use in scenarios such as home travel,washing face,clothes,and foot soaking