Ultra-low-profile harness construction designed to wear under uniforms and outer layers with minimal change to the silhouette or interfering with movement.
Thermal performance that stays low profile under the uniform.
Cold is a readiness problem. It degrades dexterity, attention, and endurance long before it becomes a safety event. HEATJAC™ puts an engineered thermal layer between the body and the cold, under the uniform, without changing anything above it.
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HOW THE ARCHITECTURE APPLIES
Under the uniform and kit
Silent and passive
Silent, passive warmth. No fans, no forced air, no noise.
No single point of failure
The platform is source-agnostic: it accepts long-duration warming elements of the user’s choice rather than depending on one proprietary battery.
Configurable by role
The patented Thermal Cell Array™ positions warmth where the task demands it: static posts, transport, flight line, or dismounted movement.
Simple by design
Dons and doffs in seconds, adjusts across body types, and follows a one-page care guide.
Made & developed in America
HEATJAC™ products are manufactured in America, and the platform behind them is protected by two issued U.S. utility patents. Mission-specific configurations are an active part of the HEATJAC development roadmap.
- Under the uniform and kit
- Silent and passive
- Configurable by role
Developing equipment for cold environments? See R&D and testing.
EVALUATIONS
Put it on your evaluators, not on a slide.
We support evaluation and pilot programs for units, programs, and procurement organizations, from single-unit trials to structured cold-environment evaluations.