The thermal wrap protects the thermos against damage and at the same time increases thermal insulation. The outer layer is made of nylon and polyurethane, the inner layer is made of polyester. A neoprene core is inserted between the outer and inner layers. It is also possible to pour from a thermos with a thermos bag on, just unzip and fold over its upper part. The thermal package is completed with a practical loop, for example for attaching the thermos to a backpack.