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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Hot-Water Bottle
Ready-to-Wear

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 (Solo)
Foundly®

Foundly® Hot-Water Bottle (Solo) 50% off

€32,95 From €16,47 €32,95
FoundlyHot-Water Bottle Belt
Foundly®

Foundly® Hot-Water Bottle Belt

€29,95
Foundly® Set (Hot-Water Bottle + Belt)
Foundly®

Foundly® Set (Hot-Water Bottle + Belt) 26% off

€62,90 From €46,43 €62,90
Foundly Bottle Stopper
Foundly

Hot-Water Bottle Stopper (Replacement)

€2,95

    • "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

    Feedback Love

    Lizz

    „Ich hatte zuvor ein langes Wärmflaschenmodell, das ziemlich schwer war, und die Wasserverteilung hat mich genervt. Diese hier ist hingegen echt leicht und dadurch super für den Alltag. Ich empfehle sie sehr!“

    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! ”

    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"

    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!“

    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!“

    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 könnte :P!“

    Heat Therapy and Pain Relief:

    Scientifically Proven Benefits
    of Heat

    Why does heat help?
    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.

    University College London

    Meet your New
    Self-Care Buddy

    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.

    Blog – Wellness, Product Care, and Interior Design Insights

    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.
    Foundly Wärmflasche in Blush

    Hot-Water Bottle – Ready-to-Wear

    Sold out four times in a row.

    Check availability