According to a major test by the Norwegian Institute for Water Research, many children's outerwear contain undesirable environmental toxins, such as fluorocarbons, which are harmful to the environment and human health. As many as 90% of the clothes tested contained environmental toxins, and only three brands came out completely free.

See below which brands performed best and worst in the test.

MOLOFlight suit

Outerwear with low content of environmental toxins

Color KidsVanter

Outerwear with high content of environmental toxins

WheatFlight suit
BritaxDriving bag
BugabooDriving bag
CoopFriends flight suit
Helly HansenOvercoat trousers
CoopFriends flight suit
Helly Hansen Overcoat trousers

What to look for when choosing a sleepsuit for your child

When choosing a sleepsuit for your child, parents often look for the highest waterproofing and the best breathability. This is true whether you are buying second-hand or new. However, it is a good idea to know a little about the numbers. Many brands go for the highest numbers on their products, which does not necessarily make their products the best on the market.

  • Water column pressure

    The water column pressure is measured by stretching the clothes under a tube, and then seeing how much water you can pour into the tube before they go through. Parents often go for the highest water column pressure. That's why many flight suits have an incredibly high water column pressure of up to 10,000 mm, but in fact 3-4,000 mm is plenty to withstand the wet ground or a heavy downpour.

  • Breathability

    The number indicates how easy it is for the child to get rid of the heat when he or she is wearing the flight suit. A good breathability in a sleepsuit should be around 5,000 g. That's plenty for play and movement on a cold winter's day. Sportswear for high-intensity training, by comparison, should be around 8,000g. However, it should also be mentioned that this is a complex figure and the testing method should always be taken into account.

  • Size of flight suit

    The flight suit must be the right size for the child. If it is too big, it will restrict the child's movement. If the suit is too small, the child will find it difficult to stay warm. As a general rule, there should be the space equivalent to a clasped hand at the shoulder and in the font.

  • Beware of loose cords and belts

    Make sure you choose a sleepsuit for your child that does not have a cord in the hood or neckline. Cords can pose a danger to the child if they are in the neck and hood area and the child is playing near a play structure, for example. For safety reasons, belts should not be more than 6 cm from the place where the belt is tied.


  • The
  • Norsk Institut for Vandforsking (NIVA), 30.08.2018. Several brands were included in the test. See the full test here.
  • Institute of Technology