Summer 2026 · Limited initial release

Heat stops your crew.
Clema keeps them working.

8–12 hours of active cooling for industrial crews in 120°F+ heat. No ice. No downtime. Under 2 lbs.

Apply for early access See how it works
8–12hr Full-shift runtime
>25°F Active cooling
<2 lbs Worn under PPE
120°F+ Built for extreme heat

In the field

Industrial worker wearing the ClemaCore prototype suspender under hi-vis shirt
Prototype on a real worker A heat-exposed worker testing the ClemaCore suspender under standard hi-vis.
Clema founders with an industrial crew at a customer site visit
On site with crews Designing with the people who actually wear the gear.

The shift

For a century, we’ve cooled buildings.

Industrial work has moved past what buildings can hold.

It’s time to cool the worker.

Technology

Solid-state cooling. Built under your PPE.

01

Semiconductor draws heat

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

02

Heat moves down the strap

Heat dissipates along the strap. Fans at each end drive continuous airflow that exhausts heat away from the body.

03

No ice. No tubes. No bulk.

Under-2-lb suspender fits under hi-vis, FR, and fall-arrest. 8–12 hr with one battery swap. Nothing to refill or refreeze.

Read how the cooling works →

ClemaCore solid-state active cooling harness, worn under industrial PPE

ClemaCore

The job doesn’t stop at 100°F.

Worn under what they already wear.

Apply for early access

Industries

Built for the crews that work in real heat.

Construction

Pours, lifts, and roofing through summer peaks.

Oil & Gas

FR gear, refineries, pipelines, turnarounds.

Utilities

120°F+ field repairs. Storm response. Peak load.

Military

Field operations and training in extreme heat.

Manufacturing

Foundries, steel, glass, hot-work floors.

Logistics

Warehouses, yard ops, last-mile drivers.

The stakes

Heat illness is a liability problem.
Not a wellness one.

One incident costs $50K–$200K+ before litigation. Clema costs less than a single claim.

Run the ROI calculator Compare vest types →
$50K–$200K+ Single heat-incident cost, before litigation
30–50% Output drop on peak-heat days
36M+ Heat-exposed US workers

See Clema on the jobsite.

Built by

A climate strategist and a materials engineer.

Clema was founded in 2024 to bring solid-state cooling to the people who can’t leave the heat.

Meet the team →

Summer 2026 — 500-unit first batch

Get your crew on the priority list.

Apply for early access Talk to the team
Apply for early accessROI calculator