Safety and high quality material: High quality soft thermoplastic rubber material. nontoxic. tasteless and recyclable. Ensure maximum safety and good heat transfer. Once tested. there is no risk of leakage or explosion and the cardigan protection is in place Easy to use There are different animal patterns on the thermo cardigan. The internal thermos can be used to warm the whole body. treat sore muscles. neck stiffness. low back pain. menstrual cramps. arthritis. stress or cramps. It can also be used as a cold compress for children with fever or to reduce swelling and minor injuries. Exquisite design: with thermos and lid. Soft fluff prevents burns from direct contact with the skin and keeps it warm for a long time. The mesh structure surface can store heat longer than conventional rubber bottles. Anti-slip and anti-burn protection. Easy to use A great way to prevent hands and feet from freezing during travel. hiking. camping or other outdoor activities. It is also a good gift for women and girls. the elderly and children.