An Ice Gel Pack is offered by us that is made of water, propylene glycol and hydroxpropyl methylcellulose. The ice pack or gel pack is a portable plastic bag filled with water, refrigerant gel, or liquid. To be prepared for use, the pack is first placed in a freezer. The gel packs are created by adding hydroxyethyl cellulose and vinyl-coated silica gel into the bag. The Ice Gel Pack provides a cost-effective way of keeping your shipments cold throughout the entire shipping duration. Water has a high latent heat capacity, which makes it an ideal heat reservoir for keeping food, drinks and injured body parts cool.