Copper kidney warmer


Soft and cuddly, the copper kidney warmer made of 100% Oeko-Tex® certified merino wool with fine copper threads spreads cosy warmth around the middle of the body. Worn under clothing directly on the skin, it keeps the kidneys, bladder and intestines warm.

Please note: It does NOT have a support function.

We offer the following gift wrap options:

  • Gift box

Delivery time: 3 - 6 working days after receipt of payment

incl. VAT

SKU: Categories: Health/Copper, Orange, Pink, Purple, Red, White

The copper kidney warmer made of odour-inhibiting, breathable merino wool is approx. 25cm wide and keeps the middle of the body, i.e. kidneys, hips, stomach and also the lower back, nice and warm. The body’s own heat is kept close to the body by the natural thermal insulation of merino wool with copper. This can not only relieve pain, but is also extremely good for the body during the cold season. Keeping this area of the body nice and warm with the copper kidney warmer has an effect on the whole body!

Size M is stretchable up to 70cm hip circumference.
Size L is stretchable up to 90cm hip circumference.
Size XL is stretchable up to 110cm hip circumference.
Size XXL is stretchable up to 130cm hip circumference.

The copper kidney warmer is suitable for both men and women.

A unique quality product from Bolter in cooperation with the KOBRI studio.


Bolter Sockenmanufaktur


orange, pink, purple, red, white




Merino wool

Care instructions

Washing instructions according to label:

  • Hand wash


  • 90% merino wool
  • 10% copper

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Handmade in Vorarlberg/Austria in a family business

This is the Bolter Sock Manufacture

We uphold values that are good for us deep down. And you can feel that every time you put on our socks.

Alexander Bolter
team bolter alex evi neu sockenmacher

At Bolter Socks in Koblach, Vorarlberg, wool socks of unique quality and durability are made with a lot of handwork and traditional knitting machines from high-quality merino wool and pure copper threads, which can hardly be found elsewhere.

More info about the production

Sustainability & Environment

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