Full-shift active cooling for industrial crews in 120°F+ heat. No ice. No re-freezing.
The active cooling vest for crews who work in real heat.
Clema's revolutionary solid-state tech cools you electrically: on demand, all shift, under PPE. No ice, no water. Fewer errors. Less downtime. Safer crews. Clema holds.
A century of cooling was built for spaces, not people.
Until now.
Active cooling sits against the core, drawing heat off critical organs as it builds. Not dependent on shade, humidity, or environment.
Under 3 lbs. Works with a fall-arrest harness. A full shift on one battery swap. Nothing extra to carry.
Pours, tie-offs, no shade.
Cooled for the servers, not you.
Tear-offs on a 165°F deck.
Turnarounds in FR coveralls.
Line work. Storm restoration.
Plate carriers in full sun.
Furnace lines and hot work.
Pick faces in a non-AC high bay.
Dock plates. 120°F+ cabs.
Background on the hazard: OSHA heat exposure and CDC/NIOSH heat stress.
Already know the math? Apply for early access →
Clema was founded in 2025 to bring solid-state cooling to the people who can’t leave the heat. Anna comes from BCG’s energy and industrials practice; Clément from materials engineering at UC Berkeley and Lawrence Berkeley National Lab.
Ready to reserve? Pre-order for your crew →