Cooling Vests for MS: How the Arctic Heat Ice Vest Helps Manage Heat Intolerance

For people living with Multiple Sclerosis, heat is not just uncomfortable. Even a small rise in core body temperature, as little as 0.5 degrees Celsius, can temporarily worsen MS symptoms — a phenomenon called Uhthoff's Phenomenon. The Arctic Heat ice vest has been used by the Australian MS community since 2004 as a practical, affordable, and highly effective tool for managing heat intolerance.

What is Uhthoff's Phenomenon?

MS damages the myelin sheath that surrounds nerve fibres. When body temperature rises, the ability of damaged nerve fibres to conduct electrical signals deteriorates further. This produces temporary worsening of existing symptoms including fatigue, blurred vision, weakness, and cognitive fog. The effect reverses when core temperature returns to normal — keeping it stable is one of the most effective non-medical strategies for daily MS management.

How do people with MS use the Arctic Heat vest?

• Before exercise or physio: Wearing the vest for 30 to 45 minutes before any physical activity pre-cools the body and extends comfortable exertion.
• At work: Many people with MS wear the vest under their work clothes during hot days. Low-profile and form-fitting enough for uniforms and business shirts.
• Outdoor activities: Shopping, gardening, attending events, or any outdoor activity managed more comfortably with the vest.
• During medical appointments: Hospital waiting areas can be warm. The vest helps avoid symptom flares triggered by the environment.
• Summer travel: Flying in summer, navigating hot airports, and sightseeing in warm destinations.

Why does the Arctic Heat vest work better than a wet towel or fan?

Wet towels and fans address surface temperature but have limited effect on core temperature. The Arctic Heat vest applies cold directly to the torso, where the body's major blood vessels run closest to the surface. It also works in high humidity where evaporative methods lose effectiveness. Crystal gel panels cool through conduction, not evaporation.

The Arctic Heat vest is also used by the US MS community and is available through Arctic Heat USA.

Frequently asked questions

Is the Arctic Heat vest recommended for Multiple Sclerosis?

Yes. Cooling vests are widely recommended by neurologists and MS nurses as a practical tool for managing Uhthoff's Phenomenon. Always discuss new heat management strategies with your neurologist or MS nurse.

Can I wear the vest all day?

The vest stays cold for up to 2 hours. For all-day use, keep a second vest or spare cooling packs in a fridge at work to swap out mid-day.

Is the vest available on the NDIS?

Some NDIS participants have successfully claimed cooling vests as an assistive technology item. This depends on your individual plan and funding category. We can provide invoices and product documentation to support a claim.