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4,9/5 rating
"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!“


"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."

Dr. Martin Morgenstern, Evolutionary Psychologist, Cologne

“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. ”


“Fantastic 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! ”


„Eine Farbe schöner als die andere 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...."


Ständiger Begleiter „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"


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


„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.."


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Some scientific research results about heat.

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.


UCB is the upgraded version of the conventional hot-water bottle. Ergonomically shaped (including massage riffles) and designed to keep you warm and cosy during your daily routines – whether it’s at the office, during outdoor activities or while having a relaxing rest at home. 
In combination with our comfy, removable belt, our hot-water bottle can be worn in multiple ways: around your neck and shoulders, around your upper or lower back or around your belly. 

Studies have proven that heat in general has a similar effect to a painkiller, effectively “deactivating” pain at a molecular level. In this way, completely naturally and without any chemicals, heat shuts down the regular pain response and helps with issues such as menstrual pain, neck tension and abdominal cramps, and even diseases such as endometriosis or Crohn’s disease. However, hot-water bottles by themself do not ease pain. UCB do not claim the capability of a medical device. In case of doubt, consult your doctor or pharmacist.

Yes. The fact that heat relieves abdominal pain, such as colic or menstrual pain, has been scientifically proven by a UCL (University College London) scientists.
Dr Brian King, of the UCL Department of Physiology, led the research that found the molecular basis for the long-standing theory that heat. provides relief from internal pains.
Dr King said: “The pain of colic, cystitis and period pain is caused by a temporary reduction in blood flow to or over-distension of hollow organs such as the bowel or uterus, causing local tissue damage and activating pain receptors. If heat over 40 degrees Celsius is applied to near to where internal pain is felt, it switches on heat receptors located at the site of injury. These heat receptors in turn block the effect of chemical messengers that cause pain to be detected by the body.
For more infos visit: https://www.ucl.ac.uk/news/2006/jul/heat-halts-pain-inside-body

Thank you for your purchase. Your Urban Cross Bottle and matching wearables are currently manufactured and will be delivered as soon as stocked.
We will keep you in loop. Follow us also on Instagram @foundly_studio to stay updated. If you have any questions contact us via support@foundly-business.com. We will come back to you as soon as possible.

Please do not fill your Urban Cross Botte from a tap or other domestic water system as this can prematurely degrade the product. 
After usage, please allow your bottle to air dry completely with the lid open. This will help to avoid unwanted moisture build up in your bottle and around the seal.  
Store your bottle with the lid off and keep in a cool, dry and dark place.
Avoid contact with hot surfaces, oil, grease and direct sunlight pointed and sharp objects. Do not allow anything to rest on the bottle.
Since the bottle is manufactured out of natural rubber, without any additional, chemical protective layer, it is possible that your bottle gets a patina after some time of usage. If this bothers you, you can water the outside of the bottle with hot water, with the goal to visibly reduce these marks again. Note: Hot water can cause burns. Please execute this procedure with caution and avoid direct hot water contact to the skin. Please note that we decline any liability to it.
To ensure that you are always using a bottle which is in good condition and safe it is advisable to replace your rubber bottle every 2 years.

UCB holds 800ml. Nevertheless its is recommend to fill the bottle only max 2/3 or less to avoid burns. 
Don’t forget: Do not use boiling water, even hot tap water can scald.
Hold the hot-water bottle by its neck, while carefully filling the bottle to a maximum of 2/3 to prevent any water from splashing back. Hot water bottles should always be filled by a responsible adult.

Hot water bottles can be dangerous & cause burns if they are not cared for or used in the proper way. Please read our instruction for filling, using and caring for your hot water bottle displayed here
When filling your hot water bottle, do not use boiling water. 
While filling hold the bottle by the neck in an upright position and fill slowly to avoid water splashing back. Only ever fill your bottle to a maximum of two-thirds capacity. Always expel air from the bottle by lowering it carefully onto a flat surface until the water appears at the opening.
Screw the stopper tight to ensure there is no leakage. Check your bottle thoroughly, including the stopper when using for the first time. Thereafter, check it regularly for wear, leaks and damages.

This recommendation is valid for all hot-water bottles, not just UCB. This recommendation is for your protection as hot water can cause burns.
Doctors recommend 40-50 degrees as the ideal water temperature. Always cover your bottle with a adequate cover, like a sweatshirt.
Do not use if you are concerned.  

Hot water bottles can be dangerous and cause burns if they are not filled, cared for or used in the proper way. Please follow the instructions given.
Do not fill this bottle with boiling water.  
Do not put excess pressure on your hot-water bottle or sit, lie on top of it.
To prevent burns, an adequate cover should be used. 
The use of hot water bottles by babies is not advised and children should be supervised by adults.
Elderly people, and those with sensitive skin or reduced feeling should use hot water bottles with care.
All our bottles are made with natural rubber, so please be careful if you have a latex allergy.
Check your bottle thoroughly, including the stopper when using for the first time. Thereafter, check it regularly for wear, leaks and damages.

The aim of the Fair Rubber Association is to contribute an improvement of the working and living conditions of the producers and farmers in the growing regions as well as to promote the environmentally friendly production of natural rubber, as chemical free production first. 
We are happy and proud that our re-shaped hot-water bottle fulfills the criteria of fair trade in natural rubber. Read more about the criteria here: https://fairrubber.org/about/criteria/

Natural rubber is produced by the rubber tree (Hevea brasiliensis). In order to collect the latex milk from tree, an incision is made in the bark of the rubber tree – which is called ‘tapping’. Depending on the use, following the tapping stage the latex milk is processed in different ways. About 70 per cent of natural latex is used for tires. Other products made of natural rubber are e.g. mattresses, condoms, shoe soles, hot water bottles, balloons, rubber boots and seal rings. Natural rubber can be substituted by synthetic rubber for some applications. Synthetic rubber is made from petroleum (i.e. fossil fuel). In many products – such as car tires – natural as well as synthetic rubber is used. More detailed information about rubber, you can find here or in this study by Aidenvironment.

The production of natural rubber can be characterised with ecological and in some cases severe social problems. Low world market prices for natural rubber make it more and more difficult for latex producers to make a living from tapping rubber. Furthermore, studies document cases of extremely poor working conditions. Typical problems include inadequate safety standards, inappropriate use of toxic chemicals, discrimination, excessive working hours and child labour. Agro chemicals used in the production of natural rubber are less controversial with regard to any residue in the final rubber products. Far more important is that their use threatens the health and well being of the people involved in the production and processing of the natural rubber. More information about sustainability problems and solutions in the rubber sector, you can find here.

We ship Worldwide* from Germany
Shipping within Germany.
For shipping within mainland Germany, we charge a flat rate of 4.00 Euros per order.

From a gross order value of 50 Euros on we ship free of charge. Shipments are carried out via our shipping partner DHL. The delivery time from the moment of shipping is 3-6 business days.

Returns must be sent back to us with sufficient postage at the buyer's expense. 

Shipping to the rest of the world.

Costs Europe: 11,90 €
Costs rest of world*: 24,90 €


We currently are not shipping to Afghanistan, Brazil, Colombia, Guatemala, Indonesia, Iran, Ireland, North Korea, Mexico, Peru, Russia, Syria and Yemen 
Note: All orders placed to UAE, Qatar, Orman and Saudi Arabia need to include a PO Box as a part of their address. This is a requirement for the local postal service. 

All shipping addresses are to be written in English without accents marks on letters. If the incorrect address is provided and your order has been shipped, customers will incur a reshipping fee. 

Please email support@foundly-business.com if you have any further shipping queries.

If you have made a mistake in your shipping address, please email support@foundly-studio.com within 2 hours after placing your order. You must make the subject line 'CHANGE OF ADDRESS' and provide your full name, order number and corrected shipping address.

Please make sure you check all folders in your inbox including the junk and spam folders. If you still cannot find your confirmation email please email support@foundly-studio.com  to ensure you provided the correct email during checkout. 

Our customer service is available Monday through to Friday from 9:00 am to 5:00 pm
Please email  support@foundly-studio.com  to get in touch.