US Patent 6953474 Multifunctional cool and hot compress bag

A multifunctional cool and hot compress comprises two first internal layers. Edges of the two first internal layers being sealed by pressing. An inner space is formed by the two first internal layer being filled with chemical substance. Two second internal layers encloses the two first internal layers. One outer layer surrounding the second internal layers. A press portion is formed by compressing the first internal layers. Moreover, the materials of the outer layer are water-proof rubber and cotton cloth. The water-proof rubber is as an internal layer and the cotton cloth is as an outer layer. The second internal layers are also compressed at the press portion. A through hole is formed on the press portion.