Cooling vests and garments for use in high heat environments

Gear

ZephyrCan I fly my Alexa or RED on a Zephyr?389

Master SeriesIs a used Master Series rig worth buying as a first big rig?191

BFDHow do I power my BFD receiver from my camera or sled?186

VoltCan I retrofit a Volt onto my existing sled or gimbal?168

ArtemisHow do I power my camera and accessories from an Artemis sled?166

MDRWhere can I mount my Preston MDR on my rig?143

ModulusIs there a Modulus option for HD wireless video?141

G-70Will my G-70 fit my vest, gimbal or sled?126

FI+ZCan I control iris and zoom wirelessly, not just focus?60

HU3Where can I get my HU3 repaired, refurbished or repainted?60

CineLiveHow do I pack and case my CineLive rig for transport?54

G-70XHow does the G-70X compare to Pro Titan, Xarm and other arms?46

Trinity 2Is Trinity 2 SUP 3.0 firmware safe to install or buggy?46

Ultra VestWhich vest should I choose for my body size, comfort and operator type?39

2013General Discussion forum

13 years old. Gear and prices may have changed since.

Active cooling vests with circulating ice water systems are effective for initial cooling but have limited duration in hot conditions, with ice typically lasting around 20 minutes in high-heat racing environments before melting completely.
Tubing in cooling vests can collapse under pressure from the vest or become uncomfortable if it remains rigid.
Passive cooling garments using phase-change materials provide a more practical alternative to active systems for sustained comfort in extreme heat.
Emergency cooling methods using ice packs in ziplock bags carry a risk of leakage and burst containers.

The 20-minute duration estimate comes from a racing car context with a 10-gallon cooler, which may not apply to all use cases.
The comparison to passive cooling garments was made without detailed performance data provided.
No direct comparison testing between the different methods was described.