How Cyclists Use the Arctic Heat Ice Vest to Stay Cool and Race Faster

The Arctic Heat ice vest is the most widely used pre-cooling tool in Australian sport. Cyclists, runners, triathletes, footballers and tennis players wear it during warm-ups to lower core temperature before competition. It weighs under 1 kg when activated, fits under a race jersey, and stays cold for up to 2 hours. If you race or train in Australian summer heat, it is one of the most effective legal performance tools available.

How does an ice vest help cyclists perform better in heat?

Heat is one of the most significant limiters of cycling performance. When your core temperature rises, your body diverts blood from working muscles to the skin to shed heat. The result is reduced power output, higher perceived effort, and earlier fatigue. Research consistently shows that dropping core temperature by even 0.5 to 1 degree Celsius before a hard effort delays this process and allows cyclists to sustain higher power for longer.

The Arctic Heat ice vest works by absorbing body heat through crystal gel panels across the chest and back. Worn for 30 to 45 minutes before your event or hard training session, it gives you a thermal buffer that carries into the effort itself. Professional cycling teams have used this approach for over 20 years, including at multiple Tour de France editions and Olympic Games from Athens 2004 through to Paris 2024.

When should cyclists wear an ice vest?

• Road racing and criteriums: Put the vest on 30 to 45 minutes before your race start. Remove it in the final 5 minutes before the gun.
• Time trials: Wear the vest right up until you roll into the start house.
• Mountain biking XCO: Pre-cooling helps manage the initial spike in core temperature at race start.
• Sportives and gran fondos: Wear it at the start line for as long as possible on hot days.
• Track cycling: Standard kit for track cyclists warming up on rollers before their event.

Does the vest work in Australian humidity?

Yes. The Arctic Heat ice vest uses crystal gel panels that cool through direct conduction. Humidity has no effect on its performance — making it the preferred choice for cyclists in Queensland, the Northern Territory, and coastal NSW.

How do elite cycling teams use cooling vests?

Pre-cooling is standard practice at the professional level. At Tour de France time trials, every GC contender warms up wearing ice vests. Arctic Heat vests have been used at the Olympic Games since Athens 2004. Arctic Heat cooling vests are also available for US-based cyclists through Arctic Heat USA.

How do you activate the Arctic Heat ice vest?

1. Soak the vest in cold water for 2 to 3 minutes.
2. Gently squeeze out the excess water.
3. Place in a freezer for a minimum of 2 hours, or overnight for best results.
4. Put on directly against your skin, or over a thin base layer.
5. Wear for 30 to 45 minutes before your event.

Frequently asked questions

Can I wear the Arctic Heat ice vest under a cycling jersey?

Yes. The vest is low-profile and form-fitting. Most cyclists wear it directly against the skin for maximum cooling contact.

How long does the Arctic Heat vest stay cold while cycling?

Up to 2 hours depending on ambient temperature. In extreme heat, expect 60 to 90 minutes. Most effective as a pre-cooling tool in the 30 to 45 minutes before your event.

What size Arctic Heat vest should a cyclist choose?

Choose the smaller size if between sizes. Chest measurements: XXS 80cm, XS 85cm, S 90cm, M 95cm, L 100cm, XL 105cm, 2XL 110cm, 3XL 115cm, 4XL 120cm.

Is an ice vest legal in cycling competition?

Yes. Legal under UCI rules and explicitly permitted at the Olympic Games. Classified as thermal management equipment.