The structure of ice packs

Construction: The outer layer is made of fabric with waterproof coating, which can prevent penetration and isolate internal temperature leakage. The interlayer adopts thickened insulation pearl cotton to achieve the effect of extending insulation. Generally, a thickness of 5MM is sufficient (its thickness can be increased according to demand). The inner layer is made of edible grade, safe, non-toxic, and odorless insulation aluminum foil material, which is waterproof, oil resistant, and clean, providing a continuous insulation effect.