We always put a lot of love and energy into our garments. Before it enters your wardrobe, creative minds have envisioned it and skilled hands have helped bring that vision to live. Please help us ensure that it lives a long and eventful life, just as we intended.

Take good care of it, and most importantly - wear it.


Only wash your garment when absolutely necessary

Never wash at more than 30ºC degrees

Choose shorter, gentle washing programs

Never tumble dry your DAY Birger et Mikkelsen garments

Always check the care label for washing instructions

Do not use fabric softener

Use the appropriate eco-labelled washing detergent

Turn your clothes inside out before washing them

Keep ironing and steaming at a minimum

Limit dry cleaning as much as possible

Use a laundry bag for delicate and embellished items

Close buttons and zippers before washing


Inside all of our garments, you will find a care label.

This label is developed specifically for your garment, and its care symbols tells you the very best way to treat it.



Synthetic materials can get a bad odour if they are left unwashed for too long, especially if they have been subjected to sweat.

When you wash your synthetic garments, it is important that you never wash at more than 30ºC degrees, as high temperatures can lead your garment to become permanently creased and shrink.

There is no need for tumble drying your synthetic garments. Synthetic fabrics dry very easily, so hang them out to dry instead. This will also help them stay fresh for longer.

Synthetic materials tend to shrink when washed. You can use your iron to bring them back into shape while they are still damp. But be very careful not to force the fabric too much, as this can distort the shape of your garment.

All synthetic materials release microplastics into the water when they are washed. We therefore recommend that you use a washing bag that collects these microplastics.


Cotton is probably the most used material in the entire fashion industry. Being the material of true wardrobe staples, such as the crisp shirt and white t-shirt, cotton is loved for its versatility.

Unfortunately, cotton is not an especially strong material, and excessive washing will wear down the fibres, which can lead it to break prematurely. You should therefore limit washing as much as possible.

You should never wash your garments at more than 30ºC degrees, and refrain from tumble drying your garments. This will help keep them from shrinking and limit the wear and tear. Remember to check the care label for the specific care instructions.

When storing delicate or loosely woven items, we recommend that you fold them and place them in a well-ventilated closet.


Denim has remained popular for decades, and there are very few wardrobes where you would not find at least one denim item. One reason for its long reign is its durability.

While still made from cotton, the special weaving method of denim means that it seldom breaks. Still, if you wash it too often, it will quickly lose its colour and get a more worn look.

If your denim product is not visibly dirty, we recommend storing it in a sealed plastic bag in the freezer overnight to kill bacteria and remove bad odours.

When you do wash your denim product, turn it inside out and close buttons and zippers. You should always wash denim products with similar colours to ensure that the dye does not bleed onto other the garments.

Remember to follow the care label and never wash at more than 30ºC degrees.

Instead of tumble drying, hang your denim product outside to dry. Place it in the shade so its lovely colour does not fade away in the sun.


If washed at the wrong temperature or program, viscose, lyocell, and modal garments can shrink.

Remember to follow the care label and never wash at more than 30ºC degrees.

To limit wear and tear, and prevent creases and shrinkage, you should store and dry your garments on a high-quality hanger.

If creases appear after use, steam your garments instead of ironing. While steaming is a gentler way of removing creases, it should still be kept to a minimum.

  • WOOL

    Wool is self-cleaning, meaning you only need to wash it when it is visibly dirty. We recommend wearing a cotton t-shirt or top underneath your wool garments.

    If you need to refresh your garment, you can hang it outside in the shade on a wide, high-quality hanger.

    The strength of the wool, depends on the specific fibre, so please make sure to check the care label for the best treatment. Some types of wool should only be handwashed, while others are perfectly fine to wash in your washing machine. In that case, use the wool program, and a laundry detergent suited for wool and other animal fibres to protect its self-cleansing properties.

    When wet, wool fibres weaken and risk breaking. You should therefore always dry your wool product laying on a flat surface with an absorbent material, e.g. a towel, underneath. If possible, place your wool product on a horizontal drying rack outside in the shade.

    If you store your wool product on a regular hanger, they can become misshapen. We therefore recommend that you store your product folded or rolled in a well-ventilated closet.


    Outerwear and blazers should be handled by a dry cleaner.

  • DOWN

    Down is an amazing material, used for insulation, helping to keep us warm and comfortable on the year's colder days.

    A thorough cleaning of your down product should be done by a professional dry cleaner. They will take good care of your garment, and know exactly how it should be treated.

    Before handing in your down jacket or vest at the dry cleaners, try wiping it down with a damp cloth. It is often enough and helps limit cleaning of your garment.

    We recommend that you hang your down jacket or vest outside in the fresh air once in a while to keep it fresh.


    Leather is a natural material, famous for its durability and it often enters more than one wardrobe in its lifetime. It is therefore of high importance that you take good care of it.

    Do not wash leather garments or expose them to rain, as this can lead it to shrink and crease and can cause the colour to smudge.

    If your garment becomes dirty, you can use a damp cloth to clean it. You should also treat it with leather cleaner appropriate for your garment’s specific type of leather.

    Use an appropriate leather grease before the very first use and at least once a year. It is also a good idea to treat your garment with impregnation to make it resistant to dirt, moisture, grease and more.

    Avoid folding your leather product as it can become creased and wrinkled. Store it hanging on a wide high-quality hanger in a well-ventilated place. It is important that the leather product is hung correctly on the hanger, as its shape can become distorted if stored wrong.

    Keep your leather product away from high temperatures to avoid it from drying out.

  • SILK

    Silk is a beautiful material, often used in items designed for special occasions. It is also a very delicate material.

    Silk garments should be delicately washed by hand. Be careful not to distort the proportions of your garment when it is wet.

    Like wool and down, silk is a protein and must not be washed with regular laundry detergent. Instead, it should be washed with an enzyme-free detergent suited for silk and other animal fibres.

    You should not soak your silk garment as stains can appear. Nor should you spray your silk garment with perfume and make sure any deodorant is dry before putting on your silk garment.