THE SCIENCE
HOW THE HERO WORKS
01
CHOOSE YOUR MODE
Fill with regular ice for maximum cooling — a small amount of meltwater escapes intentionally to enhance evaporative cooling. Or use Zero Degrees Reusable Ice Cubes for a completely dry, mess-free experience.
02
WEAR THE COLLAR
One universal size with multiple adjustment levels fits all neck sizes. The patented quick-release Velcro straps keep it secure. Built to maximize cooling technology and to stay secure for a comfortable ride — running, cycling, hiking, and any outdoor activity.
03
COOL THE ARTERIES
Targeted cooling reaches the carotid arteries in your neck — one of the body's most effective heat exchange points — rapidly reducing core thermal strain and helping you stay steady and sharp.
04
STAY SHARP
Up to 2 hours of cooling in direct hot sun — outlasting every competitor. Built to last for years with proper care. Safe and comfortable for all ages, from young athletes to older adults.
WHY THE HERO WINS
HOW THE HERO™ COMPETES
| HERO | OTHERS | |
|---|---|---|
| Cooling duration | Up to 2 hours | Fades fast |
| Ice capacity | 3.5 lbs | Under 1 lb |
| Fit | Maximizes cooling, stays secure | Straight/tube |
| Material | Stretch neoprene | Non-stretch |
| Closure | 10" heavy zipper | Hook-and-loop |
| Cooling modes | ICE + DRY | One mode only |
| Leak by design | Evaporative boost | Just drips |
the power to your performance
The patented HERO delivers targeted cooling where you need it most so you can push further, go longer, and stay sharp - because heat shouldn’t slow you down.
"We didn't build the HERO in a boardroom. We built it during our many, many hours grinding in the Texas heat to prepare for global mountain summits."
- John Vacalis, Zero Degrees Gear Co-Founder