Warmth where you wear it. Run your hand across the stone.
Warmth where you wear it.
★ 4.9 · 42 verified reviewsThe ondol wrap. A soft far-infrared wrap for the lower back or belly, worn under your clothes. Deep, steady warmth that goes with you — to the desk, the plane, the days your body asks for it.
One size. 106 cm at rest, stretches to 150 — closes anywhere along the band, on waists up to about 135 cm. Above that? Write to us; we'll work it out.
Runs on the USB power bank already in your bag. It isn't in the box — batteries can't ship — and any 10,000 mAh bank gives you a working day.
30 days to decide. If it isn't this, send it back for a full refund — you cover only the return postage.
No payment now · We confirm your region within 48 hours · 2-year warranty · Made in small batches in Korea · CE · UKCA Buying for the people you look after? → For partnersNot a treatment. A warm hand, exactly where the day is sitting.
Hour six at the desk.
Lower back, under the shirt. Nobody in the meeting knows.
Day one.
Low on the belly, at the level you choose, for as long as it takes.
The morning after deadlifts.
On the worked muscle while you shower, stretch, or do nothing.
On your feet since seven.
A warm hand at the small of your back, the whole shift.Also: row 34 on the night flight, the first night in a strange bed, the tent in October, the cold side of an air-conditioned office. Anywhere you would bring a hot-water bottle if you could.
Slim by design, matte black, the power bank in its own pocket. Put it on, drop the shirt, and it's gone.
it's in here
Rolled once, it takes the space of a paperback. It goes in the bag in the morning with the power bank you already carry, and comes out at the desk, on the train, in the hotel — wherever the day turns cold.
It's the Korean word for being held — and for holding something close, against yourself. We named it that on purpose.
In Korean you don't just carry a thing you love; you take it into your 품 — the way a child is carried, the way you held a hot-water bottle at 3am. Poom turns that inside out. Instead of you holding the warmth, the warmth holds you: closed around your back or your belly, it's the arm that stays.
The hot-water bottle was the same idea, older. This is that — minus the boiling, the cold spot at dawn, the leak — and it comes with you out of the door.
Press it and Poom starts on red, full strength, so the warmth arrives fast. About thirty seconds later it steps itself down to blue and stays there. From blue, the button takes you up to red or down to green, as many times as the day needs.
Runtimes measured on a 10,000 mAh USB power bank, not included · auto shut-off · EMF-free · 106 cm at rest, gives to 150 cm · CE · UKCA · OEKO-TEX® fabrics · Made in Korea
There are plenty of heated belts — a plastic panel, a hot patch, a battery that dies at lunch. Poom is a different kind of thing, and the difference is the whole point.
A soft far-infrared wrap worn under the clothes, on the lower back or the belly, that warms the body deep rather than heating the skin — the ondol principle, carried on you. It runs on the power bank in your bag, holds one even temperature for hours, and switches itself off.
Poom is the ondol wrap we make in Korea. Litual, the ondol topper, is the same warmth for your bed.No plastic panel, no rigid heating plate. The warming yarn is woven into the fabric itself, so Poom folds, sits, drives and sleeps with you — and rolls up to the size of a paperback.
The whole panel warms, not a strip in the middle. It settles to a steady temperature and holds it — up to 6.5 hours on Low — instead of the hot-then-cold cycle of a patch or a bottle.
A belt heats the skin. Far infrared goes about 4 cm in, to the muscle that has been holding on all day — which is why physios, deep-tissue therapists and midwives send people home with one.
EMF-free, 5V from a power bank, automatic shut-off, a flame-resistant shell, and a warming yarn that is Teflon-coated and woven, never glued. CE, UKCA, OEKO-TEX® fabrics.
The warming yarn is Teflon-coated and woven into the panel — never glued — so nothing toxic sits near your skin. EMF-free, with automatic shut-off. A flame-resistant neoprene shell on the outside; breathable mesh where it meets you. Woven and sewn in Korea by a team that has made textiles for thirty years.
Neoprene shell, flame-resistance certified, matte black · nano far-infrared warming yarn, Teflon-coated, hand-woven · breathable mesh lining, the layer against your skin · elastic band, fastening surface across the whole front · a pocket that keeps the power bank out of sight. Far infrared sinks deep beneath the skin — past the surface, into the muscle that has been holding on all day.
106 cm laid flatelastic — gives to 150 cmOne size, nearly every waist. The whole front of the band takes the fastening, so it closes wherever you press it — more overlap on a narrow waist, less on a wide one, up to about 135 cm. It doesn't have to sit at the waist, either: higher across the back, lower on the belly, around a thigh. Wherever the day asks.
★ 4.9 · 42 verified reviews · ★★★★★ 37 · ★★★★ 5 · sold as Core Comfort until 2026, so older reviews use that name
I bought this for lower back pain from sitting at a desk all day. The far-infrared heat is noticeably different from a regular heating pad — it feels like it goes deeper. Battery lasts my entire workday.Anna B. · Stockholm
원래 생리통 완화용으로 샀는데, 허리 통증에도 너무 좋아서 매일 쓰고 있어요. 보조배터리로 돌아가니까 회사에서도 쓸 수 있고, 얇아서 옷 안에 넣어도 티 안 나요.김수진 · 서울
I see so many women suffering with menstrual and postnatal pain. This is the first product I genuinely recommend to my patients. Safe, effective, portable.Emma J. · midwife · BirminghamWork with Poom in your practice →
I've had endometriosis for 8 years and literally couldn't function during my period without a hot water bottle. The belt is a game changer — it heats up in seconds, lasts for hours, and I can wear it under my clothes to work. No more boiling water at 3am.
Lisa T. · ✓ VerifiedJ'ai des douleurs chroniques au dos depuis un accident de voiture. Cette ceinture chauffante est devenu indispensable. La chaleur infrarouge pénètre beaucoup plus profondément qu'une bouillotte. Je l'utilise au bureau, dans l'avion, même au restaurant. Personne ne le voit sous mes vêtements.
Marie L. · ✓ VerifiedI have PCOS and the cramps are brutal. My heating pad at home works but I can't exactly bring it to the office. The portable one solved that problem completely. Wearable, discreet, and the heat actually reaches deep. Taking off one star because shipping took a while to the US, but the product itself is 5/5.
Rachel S. · ✓ Verified엄마가 허리가 안 좋으셔서 선물로 드렸는데, 너무 좋다고 하셔서 저도 하나 샀어요. 생리통에 진짜 효과 있고, 핫팩처럼 데일 걱정도 없어서 안심이에요. 충전식이라 어디서든 쓸 수 있는 것도 큰 장점.
이현주 · ✓ Verified毎月激しい生理痛に苦しんでいましたが、腹巻きを使い始めてから痛み止めの量が半分になりました。遠赤外線の温かさは貼るカイロとは全然違います。体の奥から温まる感じで、持続時間も長いです。
田中あゆみ · ✓ Verified자궁근종 때문에 복부 통증이 심했는데, 복대가 많이 도움이 돼요. 약을 먹기 싫을 때 대안으로 쓰고 있고, 원적외선이라 일반 핫팩보다 깊은 곳까지 온기가 전달되는 느낌입니다.
박은지 · ✓ VerifiedThe heat therapy itself is amazing — my chronic back pain has reduced by about 50% on days I use it. The strap took some adjusting to get comfortable, but once I figured out my ideal positioning, it was great. Solid 4 stars, would be 5 with a better strap design.
Julia K. · ✓ VerifiedAntes perdía 2-3 días al mes por dolor menstrual insoportable. La faja me permite funcionar normalmente. Lo llevo bajo la ropa en la oficina y nadie lo nota. La batería dura todo el día laboral. Es una revolución para las mujeres que sufrimos dismenorrea.
Claudia R. · ✓ VerifiedEndo warrior here. The belt is now permanently in my bag alongside my painkillers. But the amazing thing? I'm reaching for the painkillers less and less. The deep heat genuinely helps manage the pain. This isn't a gimmick — it works.
Olivia M. · ✓ Verified장거리 비행기 탈 때 허리가 항상 아팠는데, 온열 복대를 허리에 대고 있으면 훨씬 편해요. 보조배터리만 있으면 되니까 비행기에서도 쓸 수 있고, 가볍고 얇아서 짐이 안 돼요.
최지은 · ✓ VerifiedI work at a desk 10 hours a day. Lower back pain was becoming chronic. The portable one at medium heat during work hours has dramatically reduced my evening pain levels. I barely need my weekly massage anymore. The product pays for itself.
Catherine B. · ✓ VerifiedI hike and cross-country ski regularly. Wearing the Poom under my layers keeps my core warm without bulky clothing. The battery lasts through a full day hike. Game changer for anyone active in cold climates.
Hanna S. · ✓ Verified제가 회사에서 허리에 대고 있으니까 동료들이 뭐냐고 물어봐서, 설명해줬더니 3명이 바로 구매했어요 ㅋㅋ 특히 생리통 심한 동료가 너무 좋다고 매일 감사하다고 합니다.
정유라 · ✓ VerifiedI was taking ibuprofen almost daily for period and back pain. Since getting the heat wrap, I've cut my painkiller use by 80%. The far-infrared heat addresses the root cause rather than just masking symptoms. My stomach thanks me.
Megan O. · ✓ Verified着物の着付けの仕事をしていますが、冬場は特に冷えがつらかったです。Core Comfortは薄くて着物の下に付けても目立ちません。お客様にも勧めていて、好評です。日本の寒い冬にぴったりです。
佐々木里奈 · ✓ VerifiedThe heating effect is genuinely therapeutic — much deeper than a regular heat pad. My only complaint is the USB cable could be slightly longer for more comfortable positioning. But the product itself delivers on its promises. Pain relief is real.
Laura P. · ✓ Verified주말마다 등산하는데, 하산 후 허리와 다리 근육통이 심했어요. 코어 컴포트로 부위별로 대면서 쉬면 다음 날 컨디션이 완전히 다릅니다. 등산 동호회 회원들에게도 추천하고 있어요.
김민서 · ✓ VerifiedJ'ai montré cette ceinture chauffante à ma gynécologue qui a été impressionnée par la technologie infrarouge. Elle m'a confirmé que c'était une excellente alternative aux anti-inflammatoires pour les douleurs menstruelles. Depuis, elle le recommande à d'autres patientes.
Isabelle C. · ✓ VerifiedPlayed rugby for 15 years, and my back is paying the price. The portable one gives me consistent relief without the faff of hot water bottles or messy heat patches. It just works, every single time.
Emily R. · ✓ VerifiedFinalmente un prodotto di salute che non sembra un dispositivo medico. Core Comfort è elegante, sottile e si nasconde facilmente sotto i vestiti. E soprattutto funziona davvero — il calore infrarosso è completamente diverso da una borsa dell'acqua calda.
Andrea M. · ✓ Verified생리 첫날에 항상 결근했는데, 품를 알고 나서는 아프면서도 버틸 수 있게 됐어요. 옷 안에 차고 있으면 아무도 모르고, 진통제를 안 먹어도 되는 날이 많아졌습니다.
조은비 · ✓ VerifiedMy physio uses infrared lamp therapy. This is essentially the same thing but portable. I use it 4-5 times a week and my chronic hip pain is the most manageable it's been in years. At €149, it's paid for itself many times over compared to physio sessions.
Helena V. · ✓ VerifiedTrabajo sentada 8 horas y los dolores de espalda eran constantes. Core Comfort ha sido mi salvación. Lo conecto a mi power bank, lo pongo en la zona lumbar y puedo trabajar sin dolor. Mis colegas ya me preguntan dónde comprarlo.
Mercedes G. · ✓ VerifiedThe pain relief is legit — probably the best non-pharmaceutical option I've tried for cramps. Would love a waterproof version for bath time. But honestly, that's me being picky. The product does exactly what it says.
Kate W. · ✓ Verified필라테스 강사인데, 수업 전후에 이 벨트로 코어 부위를 워밍업/쿨다운하면 효과가 좋아요. 회원님들 중 허리 통증 있으신 분들께도 추천하고 있고, 반응이 정말 좋습니다.
이지현 · ✓ VerifiedCold climate + 9 hours at a desk was destroying my lower back. This belt at medium heat for a few hours while working has eliminated my need for weekly chiropractor visits. The savings alone have paid for the product twice over.
Astrid N. · ✓ Verified札幌の厳しい冬、外出時にCore Comfortをお腹に巻いて出かけます。通常のカイロと違い、遠赤外線の温かさは深くまで届きます。バッテリーも長持ちするので一日中安心です。もう冬の必需品です。
高橋真理 · ✓ VerifiedSeriously, this product should be more well-known. I tell everyone about it. The technology is legitimate, the build quality is excellent, and it actually makes a difference in daily comfort. My period pain management has been transformed.
Jennifer L. · ✓ Verified출산 후 복부와 허리 통증이 심했는데, 코어 컴포트 덕분에 많이 나아졌어요. 수유하면서도 착용할 수 있어서 편했고, EMF 프리라 아기 옆에서도 안심하고 사용할 수 있었습니다.
신예진 · ✓ VerifiedI've spent hundreds on wellness products that sit in drawers. The heat wrap is the first one I actually use daily. Period pain, post-gym soreness, cold weather warmth — it handles all of it. Simple, effective, beautiful design.
Freya D. · ✓ VerifiedWhat sold me is how thin it is. I wear it under my blouse at work and nobody notices. The warmth keeps my chronic lower back pain at bay during long meetings. This is genuinely the most useful health product I own.
Clara S. · ✓ Verified겨울 캠핑 갈 때 꼭 챙겨요. 보조배터리만 있으면 되니까 전기 없는 곳에서도 쓸 수 있고, 등에 대고 있으면 추위를 잊을 수 있어요. 캠핑 커뮤니티에서도 화제입니다.
박소현 · ✓ VerifiedNobody talks about how cold office AC is in summer. My lower back seizes up every afternoon. The belt at low heat is the perfect solution. Invisible under my dress, effective all day.
Alice T. · ✓ VerifiedTook about 2 weeks to arrive in Australia but the product itself is excellent. The far-infrared heat is noticeably different from conventional heating pads. My physiotherapist was impressed. Just wish international shipping was faster.
Nicole F. · ✓ Verified임신 초기에 복부 불편감이 있었는데, 의사 상담 후 낮은 온도로 사용했어요. 약을 못 먹는 시기라 비약물적 방법으로 통증을 관리할 수 있어서 정말 감사했습니다.
윤채원 · ✓ VerifiedI was spending €40/week on physiotherapy for chronic back pain. The Poom at €149 has reduced my physio visits to once a month. It's literally saving me over €100/month. The product paid for itself in 6 weeks.
Petra K. · ✓ VerifiedI bought this for myself, then for my mom, my sister, and my best friend. The reaction is always the same: 'Why didn't I know about this sooner?' Period pain management should not involve boiling water in 2024.
Lena M. · ✓ Verified2023년에 구매해서 2년째 쓰고 있는데, 성능 저하 없이 잘 작동합니다. 내구성도 좋고 세탁해도 문제없어요. 주변에 10명 넘게 추천했고 다들 만족하고 있습니다. 가성비 최고의 건강 투자예요.
장서윤 · ✓ VerifiedAnyone who wears one can write. A line or a paragraph, a photo if you like — we verify it against a purchase and publish it as you wrote it.
For yourself, it's a comfort.
For someone else, it's a way of looking after them.
Most of what we make ends up in one home at a time. Some of it goes further — into a doula's bag, a physiotherapist's back room, a hotel's night drawer, a gift that arrives with a card and means it.
We welcome those partnerships, and we choose them slowly. Poom should go where it is truly needed, to people who will use it the way it was meant to be used. When that happens, it matters to us more than the order does.
Korea treats the weeks after birth as sacred: rest, warmth, someone else doing the worrying. Poom brings that standard into your clients' homes — low on the belly or the back, closed with one hand at 3am, warm within a minute.
You already know what steady warmth does for a body that has been holding on. Poom carries your work home between sessions — under a shirt, on the drive back. Certified, EMF-free, and something your own hands will approve of before your clients' do.
Most gifts say "we thought of you for a moment." This one says "please, actually rest." A card in your words, a box that opens quietly, and a thing people will use on a Tuesday in February rather than keep in a drawer.
The guest with the bad back. The one who arrived cold, or with cramps, or simply undone by travel. A Poom in the night drawer, or offered at turndown, is a small kindness that gets remembered — and mentioned.
I'm a yoga instructor and recommend this to all my students with chronic pain. I've now bought four — one for me and three as gifts.Sophie H. · Amsterdam · ✓ Verified
There is no catalogue to work through and no minimum to reach. Tell us whom you look after, and we start with a sample in your hands. Min in Paris answers you herself, within two business days; Miye in Seoul runs production, so a card in your words, a different pouch, a smaller box — those are conversations, not a request form.
And if Poom turns out not to be right for your people, we would rather say so and think with you about what would be. We like businesses that help each other. Ours has grown that way.
Not you, but someone you know? Your physio, your HR lead, the hotel you keep going back to — send them this page. We'll take it from there.
An ondol wrap is a soft far-infrared wrap worn under the clothes that warms the body deep rather than heating the skin — the principle of ondol, Korea's warmed floor, carried on you. A heated belt is usually a plastic panel or a hot patch: rigid, hot on the surface, cool underneath, and gone by lunch. Poom's warming yarn is woven into soft fabric so it bends with you; the whole panel holds one even temperature for hours; far infrared reaches about 4 cm into the muscle, which is why bodywork practices recommend it; and it is EMF-free with automatic shut-off. Poom is the ondol wrap Kozy makes in Korea.
Almost certainly. Poom is 106 cm (42 in) at rest and the band stretches to 150 cm (59 in), so one size closes on waists up to about 135 cm (53 in), and there is no small end worth naming — a narrower waist just gets more overlap. The whole front of the band is fastening surface, so it shuts wherever you press it, and it can sit higher on the back or lower on the belly rather than at the waist. Above that range and still want one? Email support@kozy.care and we will work out an extension with you.
No. Poom is slim by design and matte black, and the power bank sits in its own pocket. Under a shirt, a base layer, a dress — in a meeting, on the metro, at the gym — it's your secret.
One is not included: shipping rules keep lithium batteries out of the box, and Poom carries no battery of its own. Any standard USB power bank runs it — the one already in your bag. We'd point you at 10,000 mAh or more, because every runtime we quote is measured on a 10,000 mAh bank: up to 6.5 hours on Low, 4.5 to 5 on Mid, 3.5 to 4 on High. A larger bank holds the warmth longer and weighs a little more. That is the only trade.
One button does all of it, and the light on the button tells you where you are. Press it and Poom starts on red — High, 50°C — so the warmth arrives quickly. After about thirty seconds it steps itself down to blue, Mid at 45°C, on its own. From there the button takes you up to red again or down to green, Low at 40°C. Green runs the longest, red the shortest.
Poom is EMF-free, shuts itself off against overheating, and its warming yarn is Teflon-coated and woven without adhesives. It's certified (CE, UKCA, OEKO-TEX® fabrics) and built for daily wear. If you're pregnant or living with a health condition, a two-minute question to your doctor first.
Poom is not machine-washable — the warming yarn is woven into the panel, so it cannot go through a wash. That is part of why it is black. Wipe the shell with a damp cloth, spot-clean the lining by hand with mild soap, and let it air-dry. Full care notes come in the box.
Not now. Reserve, and within 48 hours we confirm your region and send the payment link with the confirmation; Poom ships once it's paid. For a limited time shipping is free worldwide and we ship with duties and taxes paid, so the price you see is the price you pay — nothing to settle with the courier.
30 days from the day it arrives, no questions asked. Send it back from wherever you are and we refund the full price — the only thing you cover is the return postage. Every Poom carries a 2-year warranty.
The world will keep asking things of you today. Poom asks nothing — it just holds on, warm, until you're done.
품 · poom — in Korean, the warm space inside someone's arms. The word for being held. We named it that on purpose.
30 days, full refund · Free shipping worldwide, for now · 2-year warranty · No payment now