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“First day in years I didn't have to hold my stomach on the train.”

“I put a patch in before leaving for work and expected to be fiddling with it by lunch. It stayed flat through the whole commute and a nine-hour shift. First day in years I didn't have to hold my stomach on the train.”

“Day two, twelve hours, no leak.”

“I wore it on my heaviest day with jeans and no backup pad, which I'd never risk before. Twelve hours later, nothing. The warmth helped more than I expected too, especially on the walk home.”

What period pants get wrong

Slide a standard heat patch into the front pocket. Three layers handle the leaks while the warmth stays on your lower belly.

Heat that needs you to sit still

Hot water bottles need a kettle and a sofa Rechargeable belts need charging, then sit bulky under jeans Patches stuck on the outside slide down by lunchtime

HOLDS THE PATCH

THREE LAYERS

SOFT COTTON

XS TO 6XL

Underwear that stops at leaks

Hot water bottles need a kettle and a sofa Rechargeable belts need charging, then sit bulky under jeans Patches stuck on the outside slide down by lunchtime

Three layers, front and back

Leak protection is the baseline. The pocket is what lets warmth travel with you.

INNER LAYER — Soft cotton-blend fabric sits next to the body.

ABSORBENT LAYER — Helps draw in flow through the front-to-back protective zone.

OUTER LAYER — Adds a leak-resistant barrier for everyday reassurance.

For heavier-flow days, pair with the period product you normally use. Heat patches are not included.

The patch stays where you put it

Slide a standard heat patch into the front pocket. It sits flat over your lower
belly and stays there while you move. Swap in a fresh patch when the heat fades.

High waist, wide gusset

The waistband sits high, above the line of your jeans. The gusset is wide between the legs, out to the leg opening. Heat patches not included.

PERIOD DAYS, MADE EASIER.

Warmth where you need it. Leak protection where it matters—without belts, cords or sticky patches.

Heat belt

Stick-on patch

Built-in leak protection

Sits flat under jeans

No sticky residue on skin

Nothing to charge or refill

Heat you can replace in seconds

FIND YOUR FIT

XS–6XL · UK 4–24

The pocket sits flat against your lower belly when the brief fits close. Measure your waist and hips before you choose.

1. Measure around your natural waist.
2. Measure around the fullest part of your hips.
3. If you sit between two sizes, choose the larger size.

It should lie smooth under clothes. The front pocket works empty too.

GOOD TO KNOW

Can I use my own heat patches?

Yes. The front pocket is designed for standard air-activated heat patches, so you can use the brand and warmth level you already prefer.

Are heat patches included?

No. Heat patches are not included, giving you the freedom to choose your preferred brand and heat level.

Can I wear it without a heat patch?

Absolutely. Wear it as comfortable three-layer period underwear whenever you do not need added warmth.

Will the patch touch my skin?

No. The patch sits inside the front pocket rather than directly against your skin. Always follow the heat patch manufacturer's instructions.

How do I wash it?

Remove the heat patch first. Rinse in cold water, machine wash cold, and line dry. Do not tumble dry or use fabric softener.

Is the underwear leak-proof?

Yes. The three-layer protective zone is designed to absorb flow and help prevent leaks from front to back. On heavier-flow days, pair it with the period product you normally use for extra reassurance.