About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

Koru Style
Premium eiderdown

The Koru Style Premium down comforter is a year-round comforter made from 100% white Bavarian country down of class 1 in accordance with DIN EN 12934. The comforter being tested has a filling weight of 480 grams and measures 135×200 cm. It is also available in the seller’s online store at in the sizes 155×220 cm and 150×200 cm, whereby the filling weight increases accordingly. The quilting of the comforter has a high-quality appearance and is very even, so that clumping of the down can be prevented in the best possible way. During testing, it is noticeable that the comforter is very pleasant to the touch and the cover is made of 100% cotton . In addition to the tested all-season comforter, the Koru Style online store offers many other options such as different sizes or warmth classes. The warmth classes range from 1-4, with warmth class 1 being a light summer comforter and warmth class 4 being a densely filled, warm winter comforter. The filling is also available in different variants, for example comforters with 100% down or comforters with a mixture of down and feathers are available in different price categories. The package includes a short care guide in the form of a flyer with tips on the correct use and treatment of the comforter to ensure a long product life.

Advantages

✅ High-quality materials
✅ Soft fabric, pleasant to the touch
✅ Various sizes and warmth classes
✅ Good weight

Disadvantages

None

The first impression

Packaging and contents

ℹ️ Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

CriterionRemarkScore achieved*
Product protectionBox is sturdy, product well protected by bag with carrying handles100 points
Sustainability PackagingCompact product packaging, no plastic waste at all, sustainable and high-quality100 points
Package contents & scopeFabric bag with zipper and carrying handles, down comforter, flyer with information on correct use, small 100% cotton lavender pillow as a small gift100 points
Instructions for useIn German, clearly written, product also has fabric label with care and washing instructions100 points
Total100 points
Weighting: 20%
*The maximum score is 100 points

The Koru Style Premium eiderdown comes in a white fabric bag printed with a logo. The bag has carrying handles and is closed with a zipper . The bag contained the carefully folded down comforter and a flyer with information on the correct use of the product and the seller’s contact details. As a small gift, the seller also included a lavender pillow made of 100% cotton with a pleasantly scented lavender filling and printed with the Koru Kids logo. Sustainability was taken into account when shipping the product. The components described were packed very compactly and there was no plastic waste. Overall, the packaging already gives the impression that the customer values environmental compatibility and high product quality.

The first time in your hand

Product processing and appearance

ℹ️ Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

CriterionRemarkScore achieved*
Visual appearanceBlanket looks large, the fillings in the quilting already appear voluminous when unpacked100 points
ProcessingVery high-quality workmanship, beautiful light blue outer seam and evenly stitched down100 points
StabilityVery stable, corresponding to a high-quality ceiling100 points
Sustainability of the productSustainable and durable materials, made in Germany100 points
HapticsSoft to the touch, pleasant product weight100 points
Total100 points
Weighting: 20%
*The maximum score is 100 points
Clean and evenly sewn stitching, pleasantly soft to the touch

The blanket corresponds to the dimensions specified by the manufacturer. It is noticeable that the stitching is beautifully even and neatly sewn . The overall finish is of a high quality and the outer seam is also sewn perfectly. When you hold the blanket in your hand for the first time, you notice that the 100% cotton outer material is both robust and very soft. The pleasant, not too heavy product weight should also be emphasized. The manufacturer’s statement that the blanket is a year-round blank et is appropriate. It is quite conceivable that the blanket can be used as a comforter in both summer and winter .

This is what our practical test showed

Does the manufacturer keep its advertising promises?

ℹ️ Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

CriterionRemarkScore achieved*
HygieneOeko-Tex Standard 100 certified, mite-resistant, suitable for house dust allergy sufferers100 points
Filling weightSuitable for classification in warmth class 2 – comfortable weight of the blanket, can be used all year round without any problems100 points
EthicsFeathers are obtained from dead animals without exception to produce the down100 points
CareVery easy to care for, washable at 60 degrees and suitable for tumble drying100 points
QuiltingEven rectangles, approx. 25 x 20 cm100 points
Total100 points
Weighting: 45%
*The maximum score is 100 points

When covering up with the down comforter, it is noticeable that it hugs the body beautifully and feels soft. The quilting of the comforter looks very high quality and the filling is fluffy. It is stitched evenly, ensuring even insulation and preventing the down from clumping. The manufacturer Koru Style is characterized by special hygiene standards. The down comforter is Oeko-Tex Standard 100 certified and impresses with its mite resistance and suitability for house dust allergy sufferers. A special feature of the comforter is that it is easy to care for. The down comforter can be easily washed at 60 degrees and is even suitable for tumble drying. The first impression of the Koru Style Premium down comforter has been confirmed. The product is very high quality and impresses with its pleasant use, very good hygiene standards and ease of care.

Price/performance ratio

and ratings from consumers

ℹ️ Finally, we examine how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.

CriterionRemarkScore achieved*
Price / performance ratioVery good performance in the upper price segment70 points
Rating cutNot rated, as there are still too few customer reviews.
Total70 points
Weighting: 15%
*The maximum score is 100 points

Prices of up to €180 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €100 . The Koru Style Premium down comforter is therefore currently in the higher price segment with a price of € 179.95. The price-performance ratio is appropriate for the premium quality and performance.

Overall result

WeightingScore achieved*
1. packaging & contents20%100 points
2. product processing & appearance20%100 points
3. in the practical test45%100 points
4. price/performance & consumer ratings15%70 points
Total96 points
*The maximum score is 100 points
Premium eiderdown
of the brand
Koru Style
achieved
96
Points in our test and therefore passed. The test was carried out in the test period
11/23
and is stored in our database under the licence number
231117002
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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