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Instant Heat Packs

Name: Instant Heat Packs
Brand: Fanzy Pantz
SKU: FPHU-0002
Price: 8.0 AUD
Availability: InStock

5.0

$8.00

~~$10.00~~

20% off

Instant warmth, right when it’s needed — no cords, no microwaves, no fuss.

Quantity: Price x 5

Be prepared for cramps anytime with Fanzy Pantz Instant Heat Patches - gentle, air-activated warmth designed to help ease period discomfort on the go for up to 8 hours. No microwave, no cords, no fuss.

Slim and discreet under clothing, they’re ideal for school days, long outings, sleepovers or travel when comfort matters most.

Why you'll love it

provides soothing heat for period cramps and aches
thin, flexible and discreet under clothing
air-activated - works straight out of the packet
long-lasting warmth for school days or nights
natural ingredients

Best for

period cramps at school or work
long days out
travel, camps and sleepovers
everyday pain relief on the go

How it works

air-activated heat technology warms gradually on contact with air
delivers consistent low-level heat for comfort
adheres securely to underwear or clothing (not directly to skin)

Made from

Spunlaced fabric (external fabric), Iron powder, water, vermiculite, activated carbon and salt, medical hot melt adhesive (back adhesive).

4.9 AVERAGE RATING

FAST SHIPPIING

60-DAY RISK-FREE RETURNS

FREE SHIPPING ON KITS

Loved by hundreds of customers

What others are saying

5.0

Kate, mum of 13-year-old Verified Customer

“Such a lifesaver on school days. Easy and discreet.”“Such a lifesaver on school days. My daughter gets cramps without much warning and these are easy to slip into her bag. No microwave, no fuss — just relief when she needs it.”

Instant Heat Packs

From $8.00

~~$10.00~~

5.0

Mel Verified Customer

“I keep one of these in my bag just in case. It heats up quickly, stays warm for ages, and really helps when cramps hit out of nowhere. So easy to use and super discreet.”

Instant Heat Packs

From $8.00

~~$10.00~~

5.0

Amy, mum of 12-year-old Verified Customer

“Perfect for camps and sleepovers where there’s no access to a microwave. My daughter used one overnight and said it really helped her settle and sleep.”

Instant Heat Packs

From $8.00

~~$10.00~~

Need a hand?

Can’t find what you’re looking for or need personalised advice? Our team is here to help with sizing, absorbency, orders, or anything else you’re unsure about.

Can these be worn to school?

Yes. They’re designed to be slim, discreet, and comfortable under everyday clothing.

The heat packs sit flat against the body and don’t need wires, cords, or microwaving, so they can be worn quietly under uniforms without drawing attention. Many families use them during school days, camps, or exams when cramps can be distracting and uncomfortable.

Do I need to heat it first?

No — that’s the best part.

These are instant heat packs, so there’s no microwave or power source needed. Simply open the packet and the heat activates on its own. This makes them ideal for school, travel, camps, or anywhere access to a microwave isn’t practical.

Where should it be placed?

The heat pack is designed to sit comfortably over the lower abdomen, where period cramps are usually felt.

It can be worn under clothing using the adhesive backing or placed inside compatible underwear pockets where available. Always place it over clothing or underwear - not directly against bare skin - and remove it once it cools.