Rated 4.8 (5,931+)

Vellum Lab UT5 Nano


  • Two ultra-slim warmers in every pack
  • Heats up in just 2 seconds
  • Three heat settings, up to 7 hours
  • Rechargeable, so no disposable packets ever again
  • Slim enough for gloves, pockets, even wallets
Meadow Whisper – Black
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So Nano. So Warm.

Our lightest, thinnest hand warmer yet. Big comfort in a tiny body.

Instant Heat, 3 Temps

Instant Heat, 3 Temps

Press one button and feel warmth in about 2 seconds. Switch between Gentle, Cozy and Hot to match the weather and your mood.

Always Ready, Wherever You Are

Always Ready, Wherever You Are

From chilly cafés and cold offices to snowy walks and camping trips, the UT5 Nano slips into any pocket and keeps your hands warm.

A Gift Worth Unwrapping

A Gift Worth Unwrapping

Embossed floral prints and minimalist colors make it a pretty everyday accessory. It comes in a gift-ready box, and every pack has two warmers to share.

Frequently Asked Questions

How quickly does the UT5 Nano heat up? +

It starts to feel warm in about 2 seconds. Press the button once to turn it on.

What are the heat settings? +

There are three: Gentle (100–108°F), Cozy (109–117°F) and Hot (118–126°F). Press the button to cycle through them.

How long does one charge last? +

Runtime is 3.5 to 7 hours, depending on the heat setting. Gentle lasts the longest and Hot uses more power.

How many hand warmers come in a pack? +

Each pack contains two UT5 Nano hand warmers. Use one in each hand, or share one with someone you love.

Is it rechargeable? +

Yes. Charge it with the included cable and use it again and again. There are no disposable packets to buy.

Is it safe to use? +

It’s UL Certified and has intelligent thermal control, which keeps the temperature safe and steady. Always follow the instructions in the user manual.

Will it fit in my glove or pocket? +

Yes. It’s ultra-slim and lightweight, so it slides into gloves, pockets, handbags and even wallets.

What designs and colors are available? +

We offer solid colors and embossed floral designs. Choose your favorite on the product page.

Is it a good gift? +

Yes. It comes in a gift-ready box, and each pack has two warmers. The Buy 2, Get 1 Free offer is ideal for gifting.