Kumja

The coat extender turns your own jackets into maternity and babywearing coats.
warm jacket + Winterkumja = warm & toasty
quick: no struggle with layers of baby clothing - just put on your coat
great value: no need for special maternity or babywearing garments
flexible: use multiple jackets with our zip adapter system
Find out which zip adapter you need in our step-by-step order assistant.
Please note that Kumja works best with zippers that show the letters "YKK".
Though we do our best to provide adapters for other brands too. Please read "How does it work" for further explanations.
Please consult our FAQ section to find answers to frequently asked questions.
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additional zip adapters (standard)
€16.00The Kumja jacket extension panel comes with a green zipper, which is always the same and does not fit any jacket! Kumja is connected to your jacket via adapter, which is individually chosen to match your zipper. The result is a jacket extension panel that matches your jacket only. If you want to use another jacket, you do not have to buy another Kumja but only buy an adapter, which matches that particular jacket. This way, you can use the same Kumja for different jackets. Just switch the adapter and go.
You want to use another jacket? Here you can order an additional adapter. For elder Kumja models with red zippers we have adapters aswell.Do you already know, which adapter to choose? Just put the label into the search box and order directly.
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Rain Cover for Winter- or Sunshine Kumja
€22.00Attach the Rain Cover to your jacket extension to make it weather-proof Learn More -
Winterkumja as a Present
€61.00Our top-seller as a present – along with a coupon for the suitable adapter (for customers from Germany) Learn More -
Kumja Direct – The Sew-in Adapter
€16.00The sew-in adapter prepares any jacket for the Kumja jacket extension.
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New option: the clip adapter you don´t need to sew in -
Sunshine Kumja Black
€35.00The Sunshine Kumja is the lightweight jacket extension panel for summer. Using the drawstring, you can tighten the upper part during pregnancy. The jacket is widened by 25cm. The Sunshine Kumja is 70cm long. Further details concerning tentering and length adjustment are shown in the product photos.
As all of our jacket extension panels, the Sunshine Kumja is connected to the zipper of your jacket via adapter. Here you can learn how it works.
You always need an zipper adapter for your jacket extension panel – even with a YKK-zipper. During your order, you automatically determine the type of adapter you need.
Please mind Kumja works best with zippers made by manufacturer YKK. Our special service: We try to find adapters matching other zipper brands aswell. Further information you can find here.
General information on Kumja and how the extension panel goes into the jacket, you can find in the FAQs.The two side covers, which cover the zippers, are attached via Velcro. This way, you can individually choose your color and design. Kumja always comes with a pair of matching side covers. If you order additional side covers, you will get the further on top.
The Sunshine Kumja is neither water-proof nor water-resistant, but only provides warmth. In combination with the rain cover it gets rain-proof.
Material: 65% polyester, 35% cotton.
Care: Mashine washable at 30°C.
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Sunshine Kumja Anthracite
€35.00The Sunshine Kumja is the lightweight jacket extension panel for summer. Using the drawstring, you can tighten the upper part during pregnancy. The jacket is widened by 25cm. The Sunshine Kumja is 70cm long. Further details concerning tentering and length adjustment are shown in the product photos.
As all of our jacket extension panels, the Sunshine Kumja is connected to the zipper of your jacket via adapter. Here you can learn how it works.
You always need an zipper adapter for your jacket extension panel – even with a YKK-zipper. During your order, you automatically determine the type of adapter you need.
Please mind Kumja works best with zippers made by manufacturer YKK. Our special service: We try to find adapters matching other zipper brands aswell. Further information you can find here.
General information on Kumja and how the extension panel goes into the jacket, you can find in the FAQs.The two side covers, which cover the zippers, are attached via Velcro. This way, you can individually choose your color and design. Kumja always comes with a pair of matching side covers. If you order additional side covers, you will get the further on top.
The Sunshine Kumja is neither water-proof nor water-resistant, but only provides warmth. In combination with the rain cover it gets rain-proof.
Material: 65% polyester, 35% cotton.
Care: Mashine washable at 30°C.
Learn More -
Kumja Huckepack - For Back Carry
€29.00With our DIY kit, the detailed instructions and 2-3 hours of time you can adapt your own jacket for back carry with kumja. You should have basic knowledge of sewing.
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