Experience next-level comfort and protection from heat stress with the Bullard Isotherm® Cooling Vest. Engineered with advanced phase-change technology, this vest maintains a steady 55°F temperature for up to four hours—outperforming traditional ice or gel packs that lose their chill quickly. The interchangeable front and back cool pack system recharges in just 20 minutes with ice water, ensuring zero downtime on the job. Lightweight, fully adjustable, and flame-retardant, the Isotherm vest features no condensation, keeping you dry and comfortable. Its ANSI/ISEA 107-2010 Class 2 high-visibility design makes it ideal for construction, manufacturing, and any high-heat environment. With thousands of recharge cycles and a quick, ergonomic fit, this vest is the smart choice for anyone who needs reliable, long-lasting cooling to boost safety and productivity

Features of Bullard Isotherm Cooling Vest

• Lightweight
• Quickly recharged
• No condensation
• Constant temperature
• Front/back cool pack system for continual cooling
• Adjusts for maximum comfort and flexibility 
• Choose blue, yellow, or high-visibility yellow
• ISO2 fits medium to large sizes 
• ISO2XL and ISOC2 accomodated extra-large sizes
• Flame-retardant