56 reviews

black haramaki (organic cotton)

Our best-selling Black cotton/lycra haramaki kidney-warmer.
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Product information

NukuNuku’s Black Haramaki in cotton* with lycra. A tube of stretchy cotton to pull on or step into and wear around your middle that will keep your whole body warm by layering your core. An essential basic for your wardrobe.

  • Made in the UK
  • Built to last and keeps its shape
  • High quality soft organic* cotton 
  • With added lycra for stretch 92% cotton, 8% Lycra 190gsm
  • Hugs your body round your core
  • Helps warm your whole body
  • Unisex
  • Available in sizes XS to XL

The haramaki is a traditional Japanese item of clothing worn under or over clothes around the middle to keep you warm. Unisex and ageless - for anyone who wants to banish the cold. We took this Japanese idea and made NukuNuku's own brand single layered soft cotton haramaki will keep you warm and keep its shape wash after wash. Wearing our tummy-wrap will keep your core warm and allow your whole body to stay warmer.

Great while pregnant to make your clothes fit you longer by layering and post-partum to make you feel held or warmer when breastfeeding.

May aid digestion and ease lower back pain, covers you up during sports such as pilates, cycling and yoga and allows you to stay outside for longer. Warning, you can become addicted - we wear ours 24/7...

Our own brand NukuNuku haramaki are single layered and average 30cm from top to bottom, covering your kidneys and lower back to top of the hips. 

Sceptical and think you dont need one? You may be if you havent yet tried them (but you will be hooked when you do!) You can test it out by tying a scarf round your waist to try the effect. Soon you will see that having the core of your body insulated raises your body temperature all over. This is because the inner organs are warm, increasing your circulation, which spreads heat all over your body, even to the toes and fingers.

Don’t take our word for it, please take a look at our reviews:

“I have been wearing haramakis from NukuNuku for several years now and wear them most days. I find that they have helped with so many things and recommend them often to my acupuncture patients (both female and male). They have reported back saying wearing them has helped with issues such as lower back ache, occasional bouts of sciatica, women's issues, supporting those with weak bladders, digestive issues and are great to wear to bed when camping! From my experience, they wash well and keep their shape and come in lovely colours. Thanks for a great product”

“The Haramaki changed my life, you have to try it. This Haramaki is absolutely perfect on the body, cotton and feels great against the skin. Keeps your core warm in a way that I thought it couldn't be possible (but is never too warm at the same time). It is a must have, give it a chance. Helped me with keeping my core warm, my menstrual cramps, my energy levels... 10/10. Thank you!”

Also known as: kidney warmer, belly-warmer, bump band, tummy tube, body warmer, nierenwärmer, back-warmer, core-warmer....

* as of 2022 all our black nukunuku haramaki from organic cotton 

Click here for size information


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Customer reviews

(56 Customer reviews)
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Showing 21 to 25 (56).

Love it!

I love my haramaki and I wear it a lot but I do find it a bit short. I'm a size 14 so bought a medium but I'll try a large next time. I need a bit more coverage!

Linda Woodland | Hove | February 2021

Great presents!

I gave haramakis to my sisters for Christmas and they were thrilled, especially for wearing after sea swimming. I also kept one for myself and it made a real difference during the cold spell we've just had. Great addition to the wardrobe.

Kate Cameron | Devon | February 2021

Absolutely brilliant!! I received my haramaki as a gift (I didn’t know they existed!) and I don’t ever want to take it off! I am pregnant and it is brilliant for wearing with jeans and trousers that are now getting a bit tight and I can undo the button!! Think I will need to buy more! Also the size gifted to me was too small but Catherine was brilliant and exchanged it straight away, thank you!

Allie | Devon | February 2021


I was recommended buying a haramaki by a friend and having never heard of such a thing now love them! They are so comfy and great as an extra layer of warmth. Have in black and purple. As a size 14 originally ordered size large but my second purchase ordered a medium which is probably a better snugger fit.

Lydia | Hampshire | February 2021

I am very happy with my haramaki.

I am very happy with my haramaki. I have worn it almost every day since it arrived. It's not too thick so it feels very comfortable and discreet under my clothes and definitely kept me warmer. This may be a coincidence but I'm a person who suffers from heavy very painful periods and I had very little pain whilst wearing my haramaki. Very happy with my purchase and may try a different one in future.

Jodie | London | February 2021

Showing 21 to 25 (56). Page 5 of 12.

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