FROSTSKIN short-sleeve portable water-cooling shirt in extreme desert heat FROSTSKIN short-sleeve cooling system on black volcanic terrain with distant ice mountains FROSTSKIN short-sleeve cooling system used for yacht fishing under direct sun FROSTSKIN short-sleeve portable liquid-cooling shirt on an exposed hot mountain trail FROSTSKIN short-sleeve liquid-cooling shirt beside a motorcycle in midday heat
PORTABLE LIQUID COOLING / CORE 01 CIRCUIT READY
SCENE01/ 05
FROSTSKIN / MOTION SYSTEMREC00:00:00
PORTABLE LIQUID-COOLING WEARABLE

HOT OUTSIDE.
COLD INSIDE.

Portable liquid cooling that moves with you.

OUTDOOR WORKRIDERSHIKINGDELIVERY
AMBIENT40°C / 104°F WATER28°C / 82°F Δ 12°C / 22°F
ACT II / EXTREME TERRAIN

HEAT IS
THE TERRAIN.

A close-to-body cooling circuit designed to move with the wearer.

ACT III / OPEN WATER

STAY OUT
LONGER.

Active liquid cooling for long hours under open sun.

ACT IV / HIKING

WORK THROUGH
THE HEAT.

For exposed trails, sustained effort and high-temperature terrain.

ACT V / DAYTIME RIDES

RIDE THROUGH
DAYTIME.

Active liquid cooling under protective equipment and riding layers.

01 PROTOTYPE TEST DATA

REAL NUMBERS.
CLEAR LIMITS.

In a prototype test at 40°C / 104°F ambient temperature, circulating water measured approximately 28°C / 82°F — a 12°C / 22°F difference.

AMBIENT40°C104°F
CIRCULATING WATER28°C82°F
RUNTIME2HINCLUDED POWER BANK

*Prototype water-temperature result, not body- or core-temperature reduction. Results vary by conditions.

02 SIDE-BY-SIDE COMPARISON

THREE METHODS.
ONE CLEAR DIFFERENCE.

Fan clothing moves ambient air. Ice-pack vests store a limited amount of cold. FROSTSKIN actively lowers circulating-water temperature while you wear it.

FAN CLOTHINGVSICE-PACK VESTSVSFROSTSKIN
01 / AMBIENT AIR

FAN COOLING
CLOTHING

Moves surrounding air across the wearer. Simple and light, but it does not actively chill a circulating liquid.

COOLING SOURCE
AMBIENT AIR
BEFORE REUSE
NO RESET
02 / STORED COLD

ICE-PACK
VESTS

Starts cold and gradually warms during use. The packs require freezer time or replacement before the next cooling cycle.

COOLING SOURCE
FROZEN PACKS
BEFORE REUSE
REFREEZE
03 / ACTIVE LIQUID

FROSTSKIN

Thermoelectric hardware lowers the water temperature while a pump keeps it circulating through the garment.

COOLING SOURCE
CHILLED WATER
BEFORE REUSE
RECHARGE

FROSTSKIN prototype result: 40°C / 104°F ambient → approximately 28°C / 82°F circulating water. This is a water-temperature measurement, not a body-temperature claim.

Close view of the FROSTSKIN thermoelectric cooling unit
CLOSED-LOOP FLOW
03 HOW IT WORKS

THREE ACTS.
ONE LOOP.

The cooling hardware does the work. The garment keeps the cold close to the body.

  1. 01
    CHILL

    A thermoelectric chip lowers the water temperature.

  2. 02
    MOVE

    A micro pump circulates water through the back circuit.

  3. 03
    RELEASE

    A fan exhausts heat away from the cooling unit.

DEVELOPMENTPROTOTYPE TESTED

Published figures describe circulating-water temperature, not body temperature.

PRE-ORDER30-DAY PLANNED WINDOW

We email customers if production or carrier conditions change.

DIRECT SUPPORTHELLO@THEFROSTSKIN.COM

Product, order and field-test questions reach the FROSTSKIN team.

04 CHOOSE YOUR FLOW

FIVE COLORS.
ONE COOLING LOOP.

Five color previews rotate automatically. Subtle highlights move only inside the original tube shape; use the arrows, swipe or choose a swatch anytime.

FROSTSKIN homepage model wearing the short-sleeve cooling system with Ice Blue liquid in the complete tube circuit
AUTO COLOR STORY / FLOW PREVIEW ICE BLUE BRILLIANT BLUE FCF · CAS 3844-45-9 · CI 42090

Color is a visual preview. Final shade can vary with concentration, tubing and lighting.

05 THE COMPLETE SYSTEM

ACTIVE COOLING.
BUILT TO MOVE.

A compact 13 × 7.8 cm cooling unit sits on a slim 5 cm waist belt. Two transparent 6 mm water lines connect the garment to the active cooling circuit, while the compatible power bank stays inside the concealed belt pocket.

FROSTSKIN short-sleeve liquid-cooling shirt with compact waist-mounted cooling unit
FROSTSKIN / COMPLETE SYSTEM WEAR THE COLD. GARMENT · COOLING UNIT · WAIST BELT
Everything included with the FROSTSKIN short-sleeve cooling system
01SHORT-SLEEVE SYSTEMGARMENT + COMPACT WAIST UNIT
FROSTSKIN long-sleeve complete liquid-cooling system worn from the back
02LONG-SLEEVE SYSTEMMORE COVERAGE · SAME ACTIVE COOLING
Compact FROSTSKIN cooling unit mounted directly to a slim black waist belt
03TRUE-SCALE WAIST HARDWARE13 × 7.8 CM UNIT · 5 CM BELT
Compatible 20,000 mAh power bank with built-in USB-C cable
04EXTEND +2H POWER20,000 MAH · 145W FAST CHARGE
06 MADE FOR REAL HEAT

TRAIL. WORK.
RIDE.

One active cooling platform, built for different bodies, different jobs and different ways of moving through the heat.

Woman wearing the FROSTSKIN long-sleeve cooling system on a hot mountain trail
01 / TRAILKEEP THE COLD CLOSE.LONG-SLEEVE COVERAGE · ACTIVE LIQUID COOLING
Man wearing the FROSTSKIN short-sleeve cooling system in a hot warehouse
02 / WORKMOVE THROUGH THE SHIFT.COMPACT WAIST UNIT · HANDS-FREE COOLING
Woman wearing the FROSTSKIN short-sleeve cooling system beside a motorcycle
03 / RIDESTAY READY IN THE HEAT.FITTED GARMENT · PORTABLE POWER
Angler wearing a FROSTSKIN short-sleeve liquid-cooling shirt on a yacht at midday
OPEN WATER / MIDDAY HEAT

FISH THROUGH
THE HEAT.

Portable liquid cooling for long hours beyond the shoreline.

FROSTSKIN WEAR THE COLD.
07 CHOOSE YOUR SYSTEM

CONFIGURE YOUR
COOLING SYSTEM.

Every complete system includes one FROSTSKIN garment, the cooling unit, one compatible power bank and the USB-C-to-12V trigger cable. Individual components are also available separately.

08 QUESTIONS

KNOW THE
SYSTEM.

How does FROSTSKIN work?+

A thermoelectric cooling chip lowers the circulating-water temperature. A micro pump moves the water through the garment's back circuit, while a fan carries heat away from the cooling unit.

What does 12°C / 22°F mean?+

It is the measured difference between ambient temperature and circulating-water temperature in prototype testing: 40°C / 104°F ambient and 28°C / 82°F water. It is not a claim about core body temperature.

How long does the system run?+

The compatible FROSTSKIN power bank provides 2 hours of system runtime.

What is included with a cooling system?+

One selected FROSTSKIN garment, one portable cooling unit, one compatible USB-C PD power bank and one USB-C-to-12V trigger cable. A second power bank is optional for approximately two more hours of runtime (+$59).

How do I start and stop the system?+

The unit has no on/off switch. With the cable unplugged from the power bank, connect its 12V end to the cooling unit, then connect the USB-C end to a compatible USB-C PD power bank. Circulation starts automatically. Unplug the power source to stop.

How do I wash the garment?+

Hand wash only. Disconnect the cooling unit, trigger cable and power bank first. Leave the sewn-in water tubing in the garment; do not remove or pull it. Keep all electronic hardware dry and air-dry the garment fully before reconnecting.

When will my pre-order ship?+

Pre-orders are planned to ship within 30 days of purchase. We will email you if production or carrier conditions affect that estimate.

CONFIGURE SYSTEMPRE-ORDER · $159.00