Solid-State Cooling Vest Technology | Thermoelectric Peltier

Q: How does ClemaCore's cooling technology work?

ClemaCore uses proprietary semiconductor-based cooling modules that sit directly against the skin along suspender straps. The modules actively draw heat away from the body's core. Heat is dissipated down the strap, and fans at each end drive continuous airflow through the system — producing sustained active cooling with no ice, gels, or consumable medium.

Q: What is semiconductor-based cooling?

Semiconductor-based (thermoelectric / Peltier) cooling uses solid-state modules powered by battery to transfer heat from one side to the other. There are no moving parts in the cooling element itself, no refrigerant, and no humidity dependency. Performance is consistent across climates.

Q: Why is ClemaCore a suspender instead of a vest?

The suspender form puts cooling where heat exchange is most efficient — high-blood-flow zones near the chest and back — without adding bulk. It fits under existing PPE (hi-vis, FR coveralls, fall-arrest harnesses) without modification, and at under 2 lbs it doesn't fatigue the worker over a full shift.

Q: Does ClemaCore use ice, gel packs, or water?

No. ClemaCore uses zero consumable cooling medium. The cooling is generated electrically by the semiconductor modules and runs entirely on a hot-swappable battery. There is nothing to refreeze, refill, or restock.

Q: How does ClemaCore exhaust the heat it removes from the body?

Heat is transferred from the cooling modules down the length of the suspender straps to fans at each end. The fans drive continuous airflow that exhausts the heat away from the body — completing the active cooling loop.

Q: Does ClemaCore fit under existing PPE?

Yes. ClemaCore is designed to be worn under hi-vis vests, FR coveralls, fall-arrest harnesses, SCBA harnesses, and arc-rated outerwear without modification. The sub-2-lb suspender form factor adds no bulk and introduces no new pinch points.

The core idea

Put cooling where it matters — and make it something workers want to wear.

ClemaCore takes the form of suspenders worn directly on the skin or over a t-shirt. The cooling sits along the straps in the high-blood-flow zone where heat exchange is most efficient. No bulky vest. No dangling tubes. Nothing to modify on your existing PPE.

How it works

Active cooling in three stages.

01

Semiconductor draws heat

Proprietary semiconductor-based cooling modules sit directly against the skin along the suspender straps, actively pulling heat away from the body's core.

02

Heat dissipates down the strap

The heat moves along the strap, away from the body, toward the strap ends where the cooling loop completes.

03

Fans exhaust continuously

Fans at each end of the suspender drive continuous airflow through the system, exhausting the heat and keeping the cooling loop active for the full shift.

∞

No consumables

No ice. No gel packs. No water. No refrigerant. Nothing to refill, refreeze, or restock during the shift.

Why a suspender, not a vest

Lightweight. Battery-powered. Fits under what you already wear.

Most cooling gear was built for the wrong wearer: athletes, marathoners, short medical use. ClemaCore is built for the worker who needs to stay productive in PPE through a full shift. The suspender form is the difference between a vest that ships and a vest that sits in a locker.

Under PPEFits under hi-vis, FR coveralls, fall-arrest harnesses, SCBA, arc-rated gear.
No modZero modification to existing equipment. No new hazards.
<2 lbsWorn weight. Doesn't fatigue across an 8–12 hour shift.
No tubesNo external hoses, reservoirs, or pumps to snag on equipment.
BatteryHot-swap in under a minute. 8–12 hours with one battery swap.

Specs

ClemaCore at a glance.

Cooling technology	Proprietary semiconductor-based active cooling
Form factor	Suspenders, worn on skin or over t-shirt
Runtime per battery	8–12 hr
Battery swap time	<1 min (hot-swap)
Felt temperature drop	>25°F
Rated environment	120°F+
Worn weight	<2 lbs
Consumables	None — no ice, gels, or water
Humidity dependency	None — works in any climate
PPE compatibility	Under hi-vis, FR, fall-arrest, SCBA, arc-rated outerwear

FAQ

ClemaCore technology: short answers.

How does ClemaCore's cooling technology work?

ClemaCore uses proprietary semiconductor-based cooling modules that sit directly against the skin along suspender straps. The modules actively draw heat away from the body's core. Heat is dissipated down the strap, and fans at each end drive continuous airflow through the system — producing sustained active cooling with no ice, gels, or consumable medium.

What is semiconductor-based cooling?

Semiconductor-based (thermoelectric / Peltier) cooling uses solid-state modules powered by battery to transfer heat from one side to the other. There are no moving parts in the cooling element itself, no refrigerant, and no humidity dependency. Performance is consistent across climates.

Why is ClemaCore a suspender instead of a vest?

The suspender form puts cooling where heat exchange is most efficient — high-blood-flow zones near the chest and back — without adding bulk. It fits under existing PPE (hi-vis, FR coveralls, fall-arrest harnesses) without modification, and at under 2 lbs it doesn't fatigue the worker over a full shift.

Does ClemaCore use ice, gel packs, or water?

No. ClemaCore uses zero consumable cooling medium. The cooling is generated electrically by the semiconductor modules and runs entirely on a hot-swappable battery. There is nothing to refreeze, refill, or restock.

How does ClemaCore exhaust the heat it removes from the body?

Heat is transferred from the cooling modules down the length of the suspender straps to fans at each end. The fans drive continuous airflow that exhausts the heat away from the body — completing the active cooling loop.

Does ClemaCore fit under existing PPE?

Yes. ClemaCore is designed to be worn under hi-vis vests, FR coveralls, fall-arrest harnesses, SCBA harnesses, and arc-rated outerwear without modification. The sub-2-lb suspender form factor adds no bulk and introduces no new pinch points.

Related guides

Keep reading.

Cooling Vest Types Compared

How semiconductor cooling differs from ice, PCM, evaporative.

How Long Does a Cooling Vest Last?

Runtime by technology, 60 min to 12+ hr.

Glossary

HIIPP, PCM, solid-state, microclimate — 10 essential terms.

How ClemaCore cools.