Cold packs

Instant and reusable formats

An instant pack is designed to produce cooling after activation through its intended mechanism. A reusable pack stores cold after preparation under manufacturer-defined conditions. These principles are not interchangeable. Hot-and-cold describes an additional function of certain packs, rather than a feature of the entire category. The amount of filling and envelope construction also distinguish presentations. A similar external size does not necessarily mean the same contents, preparation requirements or intended number of uses.

Envelope, filling and geometry

Some reusable packs contain a gel, while other constructions use different systems. The envelope needs to remain intact for the product to retain its intended construction. Flat, elongated and compartmented shapes offer different contact geometries. Stated flexibility and usable dimensions help describe how the pack follows a contour. A pack integrated into an orthosis forms a different assembly from a standalone pack, so the surrounding support should not be confused with the cooling component itself.

Covers and retention components

A textile cover, strap or supporting sleeve may be included or supplied separately according to the design. None should be assumed from the word pack. Whether direct skin contact is permitted depends on the instructions and intended protective layers. A storage temperature is not a target skin temperature. Reusability and cleaning conditions are also properties of the particular product rather than universal rules. The pack, its protective cover and its retention sleeve can therefore form separate components with different materials and preparation requirements.

Frequently asked questions