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Meet the original wearable Hot-Water Bottle trusted by thousands.

Designed to keep you warm and cozy during your daily routines.
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Foundly Hot-Water Bottle Greige Studio Fle

Fair Rubber Partner | Design that feels good — and does good.

 Your purchase helps create positive change: Every bottle sold supports fair wages and working conditions for rubber farmers-committed to making comfort with a conscience.
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As seen in

Feature über Foundly Wärmflasche im Magazin 'Freundin'
Foundly Wärmflasche in der Design-Edition des Magazins 'Süddeutsche Zeitung Magazin'
Feature über Foundly Wärmflasche im Interior Magazin 'Couch'
Feature über Foundly Wärmflasche im Magazin 'Emotion'
Press

Feeling Hugged All Day Long?

Designed to keep you warm and cozy during your daily routines.

EXPLORE OUR WARMTH COLLECTION
Mixture of Foundly
Mixture of Foundly

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

  • Design-driven. Body-approved,

Why Foundly?

Designed to soothe your body and mind, while supporting fair and sustainable practices.

Wearable in multiple ways: Drape it over your belly, neck, or hips for targeted warmth.

Dual-purpose: Suitable for both hot and cold applications.

Highest safety standards: Thoughtfully designed with your safety in mind.

Lightweight & ergonomic comfort: Crafted to be lightweight and comfortable for everyday use.

Free of toxins & Natural warmth: Toxin-free experience, providing soothing, natural heat.

Fair Rubber certified: Supporting fair trade and eco-friendly farming.

  • "Hot water bottles are now available with a high design factor." – Couch Magazine

  • "Saves heating costs and helps with back pain just as well as an ibuprofen." – Emotion Magazine

  • "Once you've tried it, you'll never want to miss the Foundly Hot-Water Bottle again" – Freundin Magazine

  • "Hot water bottles are now available with a high design factor." – Couch Magazine

  • "Saves heating costs and helps with back pain just as well as an ibuprofen." – Emotion Magazine

  • "Once you've tried it, you'll never want to miss the Foundly Hot-Water Bottle again" – Freundin Magazine

  • "Hot water bottles are now available with a high design factor." – Couch Magazine

  • "Saves heating costs and helps with back pain just as well as an ibuprofen." – Emotion Magazine

  • "Once you've tried it, you'll never want to miss the Foundly Hot-Water Bottle again" – Freundin Magazine

  • "Hot water bottles are now available with a high design factor." – Couch Magazine

  • "Saves heating costs and helps with back pain just as well as an ibuprofen." – Emotion Magazine

  • "Once you've tried it, you'll never want to miss the Foundly Hot-Water Bottle again" – Freundin Magazine

See What Our Customers Are Saying

Feedback Love

Paula

„Jetzt, wo ich endlich auch meine Foundly Wärmflasche habe, verstehe ich, warum sie ständig ausverkauft sind. Tolles Design und funktional. Absolute Empfehlung, wenn ihr eine ergattern könnt :P!“

Clara

“A lifesaver for my endometriosis and a beautiful addition to my home. For me, it’s the perfect blend of design and function.”

Sabrina

„Ich bin so froh, dass ich diese Wärmflasche entdeckt habe. Die Größe ist perfekt und das Material fühlt sich angenehm an. Eine absolute Kaufempfehlung für alle, die nach einer schönen und funktionalen Lösung suchen!“

Isabel

„Ein Must-Have für alle Wärmflaschen-Ultras!“

Jun

"I have a whole collection of hot-water bottles and matching scarfs to treat my endometriosis. However, I have been looking for ethical and social responsible alternatives. Therefore, the offer to test the product came just at the right time..and UCB exceeds my expectations: Ethical, a contemporary design and it definitely fits my wardrobe!“

Pamela

“My ultimate cozy accessory! Whether I’m lounging or working, I can’t imagine spending a winter day without it.”

Dr. Martin Morgenstern, Evolutionary Psychologist

"A great principle and easy to use. Especially well suited for anyone who regularly suffers from (stress-)related tension. I can "warmly" recommend the product."

Monika

“Great companion for all the menstruating people out there! I am a hot water bottle girl, not only during the winter days but also throughout my period. I struggled to secure the water bottle in the right spot for years. I’ve been patiently waiting for the next drop of Bottle + Velcro belt, and since I got hands on mine, I’ve barely take it off. ”

Tanya

“This is the most stylish and well thought-out hot-water bottle solution ever. Absolutely worth the money. People keep on asking me where they can buy it :)) Thank you all! ”

Ulrike

„Ich hatte mir zu Weihnachten direkt zwei geschenkt 😊 Das Design ist superschön und sie fühlen sich viel weicher an als andere Wärmflaschen. Die Kombination mit dem Gurt ist einfach genial: Man kann sich drehen und wenden, die Flasche bleibt, wo sie sein soll, ob auf dem Sofa oder beim Spazierengehen. Ich geniesse sie auch, wenn ich länger am Schreibtisch sitze, Rückenverspannungen ade ;-) Für mich jetzt schon ein Alltagsliebling und auf der Geschenkideen-Liste ganz oben...."

Vivien

„Ich bin so dankbar, dass es endlich eine Wärmflasche gibt, die hochwertig, schön und fashionable ist! Ich trage sie grad im Winter wirklich jeden Tag, zuhause und auch unterwegs! Vor allem bei Menstruationsschmerzen oder Muskelkater ist es super sie einfach tagsüber umzuschnallen. Ein echter Gamechanger! Der Gurt ist gut verarbeitet und super soft und hat sogar eine kleine Tasche :) Nie wieder ohne <3"

Lilli

"Too beautiful to hide. Finally, a hot-water bottle that suits my taste in interior design and fashion."

Eva

„Direkt nachbestellt!
Ich habe bereits eines der ersten Sets ergattert und bin total begeistert. Daher habe ich direkt für Weihnachten nachbestellt und freue mich aufs Verschenken. Die Wärmflasche nutze ich übrigens auch gerne alleine, wirklich ohne Sleeve. War da zuerst etwas skeptisch, aber die Foundly Wärmflasche ist wirklich angenehm. Wünsche Euch viel Erfolg weiter.."

Annika

„Ich bin absolut begeistert von der Foundly Wärmflasche! Sie sieht nicht nur wunderschön aus, sondern erfüllt auch ihren Zweck zur Schmerzlinderung hervorragend. Oft finde ich es schwierig, Produkte zu finden, die sowohl funktional als auch ästhetisch ansprechend sind. Bei dieser Wärmflasche habe ich das Gefühl, ein echtes Designerstück in meinem Zuhause zu haben, das gleichzeitig eine großartige Lösung für meine Schmerzen bietet.“

Linda

„Mein neues Lieblingsaccessoire für kalte Tage.“

Anna

„Wurde mir von einer Freundin geschenkt und ich liebe diese Wärmflasche! Design, Haptik und Konzept sind wirklich toll – und das ganze Teil ist auch fair produziert. Ich werde sie auf jede Fall auch zu Weihnachten verschenken“

Ivana

Ich finde das Produkt super und werde es in Zukunft gerne weiter verschenken 😊

6s

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Foundly Wärmflasche im Design Setting
Bloggerin zeigt Foundly Wärmflasche im Interior Setting
Foundly Wärmflasche im Couch Magazin
Foundly Wärmflasche in Greige
Foundly im Süddeutsche Zeitung Magazin
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Did you know?

Heat Therapy and Pain Relief:

What Research Reveals

Studies have proven that heat has a similar effect to a painkiller, effectively “deactivating” pain at a molecular level. In this way, completely naturally and without any chemicals, heat blocks pain and helps with issues such as menstrual pain, neck tension and abdominal cramps, and even diseases such as endometriosis or Crohn’s disease.
UCL: University College London

We believe in design that serves both sides: the person who enjoys it, and the producers who craft it. Fair in process. Honest in price. Made with care. Meant to matter.

Sense of Calm

Designed to slow you down. A still presence in worlds that never pause. A return to the body. A quiet form. Built for presence. Built for now

Impact

Design that feels good — and does good. Thanks to your purchase, you’re not just treating yourself — you’re supporting the producers and small-scale farmers behind the product. Each item is made in partnership with people who work with skill, care, and respect — under conditions that honor both human and environmental needs.

Self-Care

Warmth is more than comfort. It grounds the nervous system. It’s scientifically proven to signal safety, trust, and calm. It brings you back to your body — and into the now.

Relief

Heat doesn’t just comfort. It works. Studies show that targeted warmth can deactivate pain signals —similar to the effect of common painkillers. No chemicals. No side effects. Just pure, physical relief.

Applied, heat helps with menstrual pain, neck tension, abdominal cramps,and even chronic conditions like endometriosis or Crohn’s disease.

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