HypaCool Instant Cold Packs allow you to give immediate hot/cold therapy without the need for a freezer or microwave.The standard size is ideal for use on larger areas of the body, such as the neck, legs, back or arms as a cold compress. Also suitable for bumbps, aches and bruisesThese are a great portable solution for activities such as hiking, cycling, climbing, or to keep in a pitch-side first aid kit for speedy treatment during sports matches.Activates instantly when squeezed - no need to place ice packs in the freezerThese cold packs are disposable and designed to be thrown away after use once they have finished cooling the injury - ideal for the team physio