THERMAL COMFORT FOR ALL
The smallest thermal management system ever built. Heats. Cools. Integrates with any PPE. Made in Europe.
INDUSTRY LOSES
BILLIONS
EVERY YEAR
Every year, 8.9 million professionals in France endure the effects of extreme temperatures: premature fatigue, critical errors, accidents, sick leave.
Metallurgy, construction, energy and urban services are hit hardest, with direct impact on productivity and on-site safety.
in productivity losses per exposed worker, every year
THE SMALLEST
THERMAL MANAGEMENT
UNIT
Born from space and nuclear technologies, Tempesta combines microfluidic circuits and embedded Peltier modules in a housing worn on the belt or integrated directly into your PPE.
TWO VESTS,
ONE PATENT
TEMPESTA
Full thermal comfort · 50 W · chest + back
TRAMONTANA
Lightweight back · < 900 g · one button
THE TETHYS TECHNOLOGY
THERMO-REVERSIBLE
Heats and cools on demand. One solution for all climate conditions, all year round, without ever restricting movement.
INTERNATIONALLY PATENTED
International protection filed in 2023. Number WO2024/141723. 100% proprietary innovation built on 14 years of R&D in space and nuclear technologies.
FIELD-TESTED & APPROVED
Validated by more than 35 pilot companies, including SNCF, Eiffage and GSF, across metallurgy, construction, energy and urban services.
COMFORTABLE
Ultra-light and compact. Fits discreetly into any existing workwear, worn all day without discomfort. Protection you forget you're wearing.
MICROFLUIDIC
Patented microfluidic circuits combined with embedded Peltier modules. The same thermal technology used in satellites and nuclear plants.
FIELD AUTONOMY
3.5 hours per battery. Swappable battery, 10-second hot-swap - zero downtime on site. Standard USB-C charging.
companies
reduction
savings
filed in
THEY
TRUST US
More than 35 pilot companies from the most demanding sectors. Field feedback that speaks for itself.
The vest delivers fast, highly effective cooling while remaining surprisingly light. The batteries provide excellent autonomy. We see real potential for certain roles.
Our team was convinced by the vest's potential, to the point of requesting a new larger-scale trial. Impeccable device quality and team availability.
Very promising results. The V2 is even more ergonomic, washable and reversible. A significant evolution that perfectly meets the needs of our field teams.
Field-tested, the vest was very well received by our deep-freeze operators, who reported a notable drop in end-of-shift fatigue.
BUILT WITHOUT
COMPROMISE
MADE IN EUROPE
Designed and manufactured in France and Italy. Assembled with YMCA Services Occitanie, a social-economy partner. Certified quality and durability.
DEEP TECH
Microfluidic circuits and embedded Peltier modules from space and nuclear applications. The smallest thermal management system ever built.
CSR-DRIVEN
Social-economy partnership at the heart of our industrial model. Responsible innovation for tomorrow's industry.
PROTECT YOUR
TEAMS
TODAY
Join the 35+ companies that trust Tethys for the comfort, performance and safety of their teams.