heatstress.sgPreview
T+HTemperature and humidity, engineered for together

Perform in the heat. Not despite it.

Heat isn't just temperature — it's temperature plus humidity. We engineer for both, so you can rest, move, and work at full capacity in hot, humid conditions. Wherever that heat is.

Three ways to stay cool

Coming soon — no shop yet

Zone Control

Cooling for rooms, sleep, and small spaces.

Outdoor

Portable cooling and shade for time outside.

Wearable

Cooling gear worn on the move — training, commuting, everyday.

Our technology

What's ready today, and what we're building toward. Horizon 1 materials are proven and ready; Horizons 2 and 3 are still in development.

Horizon 1 — Now

Sourced passive fabrics

Evaporative, moisture-wicking cooling fabrics — proven materials, ready today.

Horizon 2 — Next

Custom cooling textiles

Cooling textiles formulated with our manufacturing partners — phase-change materials and radiative-cooling coatings, for performance sourced fabrics can't match.

Horizon 3 — Long-term

Deep-tech products

Smart, powered wearables with real-time heat-strain monitoring, radiative-cooling materials, patentable IP.

Where we started

Singapore already regulates for this.

Since January 2024, Singapore's Ministry of Manpower has required employers to manage outdoor heat risk under four measures — a concrete, regulated example of the temperature-plus-humidity problem we're building for, and the market heatstress.sg started in.

25.6°CWBGT

Live island-wide average · 29 NEA stations · 05:15 am

Acclimatise

Highest risk in the first two weeks on site, as bodies adjust to heat exposure.

Drink

250ml of water every 20 minutes during high-heat work.

Rest

Breaks scaled to the WBGT reading — longer rest as heat climbs.

Shade

Shade and cooling fabric for rest zones and active work areas — the pillar our Horizon 1 products support today.

32°C
WBGT

Threshold where heavy work must pause for shaded rest — mandatory under MOM.

70%
shade density

Recommended density for rest-zone shade netting.

2
weeks

The acclimatisation window — the highest-risk period for new workers on site.