Wearable Cooling
for Life Outdoors

Wearable Cooling
for Life Outdoors

$1 reservation unlocks VIP Kickstarter pricing

$1 reservation unlocks VIP
Kickstarter pricing

Born out of a research project at the University of Pennsylvania

Born out of a research project at the University of Pennsylvania

A lightweight device that helps your body stay cooler in the heat.

By enhancing sweat evaporation, Mexar Vapor helps your body release more heat and helps lower your core temperature.

PUT
YOUR
COOL
ON

PUT
YOUR
COOL
ON

PUT
YOUR
COOL
ON

Stay cooler. Stay drier.
Stay out longer.

Stay cooler. Stay drier.
Stay out longer.

Patented Under-Shirt
Airflow System

Patented Under-Shirt
Airflow System

Patented
Under-Shirt
Airflow System

Vapor directs a steady flow of pressurized air beneath your shirt, helping sweat evaporate faster and carrying heat away from your body.

Vapor directs a steady flow of pressurized air beneath your shirt, helping sweat evaporate faster and carrying heat away from your body.

  • Mexar Vapor worn under user shirt
Helps lower core temperature

Helps lower core temperature

Feeling cool is one thing. Releasing the heat building up inside your body is what matters most.
Vapor helps with that.

Without Vapor

With Vapor

Operating Modes

Battery Life

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

External Battery Support

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Weight

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Charging

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Charge Time

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Weight

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Dimensions

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Charge Time

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Charging

No. Vapor is not a medical device and does not diagnose, treat, or prevent medical conditions.
It is a wearable cooling system designed to support the body’s natural thermoregulation during active periods in hot environments.
It complements but does not replace hydration or rest breaks.

Tried & tested in demanding environments

Through long shifts, hard work, and real hot days

0+

Industrial Workers

Industrial Workers

have put Vapor to work across some of America’s hottest states, including Texas, Arizona, Florida, and Nevada.

have put Vapor to work across some of America’s hottest states, including Texas, Arizona, Florida, and Nevada.

Designed to help you
do more of what you love

Designed to help you
do more of what you love

Workouts

Keep it moving

DIY

Keep at it.

Hiking

Enjoy the trail.

Outdoor Adventures

Stay out longer.

Family Time

Enjoy the moment.

Workouts

Keep it moving

DIY

Keep at it.

Hiking

Enjoy the trail.

Outdoor Adventures

Stay out longer.

Family Time

Enjoy the moment.

$1 reservation unlocks VIP Kickstarter pricing

$1 reservation unlocks VIP

Kickstarter pricing

"What surprised me the most is the extent to which I forgot I had it on"

JD - Dad, Engineer, DIYer

What's in the Box?

  • Mexar Vapor

  • USB-C Charging Cable

  • Carry Bag

  • Mexar Stickers

  • Quick Start Guide

  • A note from us

  • Mexar Vapor

  • USB-C Charging Cable

  • Carry Bag

  • Mexar Stickers

  • Quick Start Guide

  • A note from us

Curious? Start Here.

Curious? Start Here.

Common topics with people interested in buying Mexar Vapor

Common topics with people interested in buying Mexar Vapor

How is it different from existing neck fans?

Most neck fans blow air around your face and neck without reducing body temperature. Mexar Vapor is worn under your shirt and directs airflow across your chest, back, and abdomen, helping sweat evaporate more effectively and helping lower core body temperature.

What if I sweat a lot?

That’s exactly what Vapor is designed for. Sweat cools your body when it evaporates, and Vapor keeps air moving across your skin to help that happen more effectively. This helps you feel more comfortable in hot conditions.

Can I wear it in direct sun all day?

Yes. The device is designed for hot indoor and outdoor environments. Like any electronic device, avoid unnecessary exposure to extreme conditions and follow the recommended care and storage instructions.

What happens if it gets dusty or dirty?

Maintenance is easy. Wipe the unit clean as needed. For dust or debris in the air intakes, use compressed air.

Can I expose it to water?

Vapor is designed to handle sweat and light water exposure during normal use. It should not be submerged or exposed to heavy rain. If it gets wet, wipe it down and allow it to dry before storing.

Does it shock or vibrate?

No. Vapor doesn’t use electrical stimulation or vibration. It cools by moving air across your skin to help sweat evaporate more effectively.

Is Mexar Vapor a medical device?

No. Mexar Vapor is a wearable cooling device, not a medical device. It is designed to support your body’s natural cooling process in hot environments and is not intended to diagnose, treat, cure, or prevent any medical condition.

When will my reservation be available?

We’re launching on Kickstarter before Summer 2027, with orders expected to ship in early Summer 2027. We’ll keep reservation holders updated every step of the way.

When will reservations be available?

We’re launching on Kickstarter before Summer 2027, with orders expected to ship in early Summer 2027. We’ll keep reservation holders updated every step of the way.

How does Kickstarter work?

Your $1 reservation gives you early access and VIP pricing when Mexar Vapor launches on Kickstarter. Before launch, we’ll send you everything you need to choose your reward and complete your order.

Reserve your Mexar Vapor today!

Reserve your
Mexar Vapor today!

Reserve your Mexar Vapor today!

The reservation fee is fully refundable at any time until Mexar Vapor becomes publicly available for sale.

team@mexar.co


+12155437656


100 S Juniper Street,

Hale Building, 3rd Floor

Philadelphia, PA, 19107

Copyright © 2026 Mexar Inc. All rights reserved.

team@mexar.co


+12155437656


100 S Juniper Street,

Hale Building, 3rd Floor

Philadelphia, PA, 19107

Copyright © 2026 Mexar Inc.

All rights reserved.

team@mexar.co


+12155437656


100 S Juniper Street,

Hale Building, 3rd Floor

Philadelphia, PA, 19107

Copyright © 2026 Mexar Inc. All rights reserved.