Summer 2026 — Limited to 500 Units

You know that craving for an ice shower on a 95° day?

Cryoband puts it on your wrist. A bracelet that pulses freeze waves into your skin — cool down fast, anywhere, without breaking stride.

Reserve Yours $19 deposit · Ships Summer 2026
Cryoband worn on wrist — matte white polygon bracelet with cyan LED
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Engineered at Duke University. Three prototype generations. Built by a team that ships consumer hardware — not a render, a product.

Skin Contact

The cold plate — where science meets your skin

The underside houses a thermoelectric contact plate with a hexagonal honeycomb surface that maximizes thermal transfer to your inner wrist.

The cyan accent ring is your cooling status indicator. Glowing means freeze waves are active.

Cryoband underside — honeycomb plate
How It Works
01
Tap On
Single tap activates the module. Cooling in under 2 seconds.
02
Heat Extracted
Thermoelectric pump pulls heat from wrist blood vessels.
03
Waves Pulse
Algorithm varies intensity so nerves keep sensing cold.
04
Heat Dispersed
Aluminum heat sink vents heat outward. You stay cool.

Sounds like something you need this summer?

I Want One
What's Inside
Cryoband exploded view

Every component engineered to fit inside a band you forget you're wearing.

Honest Comparison

Cryoband vs. the market leader

Embr Wave 2Cryoband
Price$299 or $20/mo$120 — one time
Ongoing costOptional subscription$0 forever
DesignMedical-adjacentMinimal — looks like a watch

Both use thermoelectric cooling with 8-9 hr battery and iOS/Android apps. The difference is price, philosophy, and design.

Questions
Does it actually cool me down, or just feel cold? +
Cryoband uses a thermoelectric heat pump that physically moves heat away from your blood through your wrist — the same Peltier technology used in medical and industrial cooling. The freeze wave algorithm pulses temperature patterns that prevent sensory adaptation, so the cooling sensation stays vivid for hours. It shifts your perceived thermal comfort, which is what matters when you're overheating.
How long does the battery last? +
8+ hours on a single charge with typical use. Charges via USB-C in about 90 minutes. Enough for a full workday, a long run, or an entire night of sleep cooling.
What if I don't like it? +
Your $19 deposit is fully refundable at any time before we ship. After delivery, you have 30 days to try Cryoband — if it's not for you, return it for a full refund, no questions asked.

Your summer doesn't have to burn.

Limited to 500 units — first production run

Reserve with a $19 deposit · Full price $120 at ship

No charge until we ship · Cancel anytime for a full refund · Estimated August 2026