Up to 4 hours of safe body temperature management in anatomically designed "optimum" temperature cooling

Cool Zone's controlled-temperature phase change technology outperforms all knock- offs in fit, form and function.  Cool Zone is the original technology that proved its metal during the ValuJet investigation in 1996 when copycats didn't exist.  The Heat Transfer Formulas, Thermal Wave Sealing and designs offer superlative features you won't find elsewhere.  
Cool Zone's technology has been extensively instrumented, field- and human factors tested proving the technology safely increases work tolerance time by 22% with no significant change in core body temperature, blood pressure or heart rates** wearing personal protective apparel.  **Tested by Alamo Research Lab
Cool Zone maintains the "optimum cooling temperature" required for maximum heat abstraction providing hours of effective relief from the health risks associated with heat related issues. 50 Degree also provides cooling systems for water Pack systems, cooling seats for vehicles and aircraft and cooling covers for electronic equipment.

Worn under Body Armor “keeps you in the field”
Auto Seat	Helicopter Seat
Cooling Packs	Cooling Pack Insertion
Cooling pack in Hydration system