Boiled wool is a very low-maintenance product. As with all wool products, it is often sufficient to hang the garment outside in fresh air to air it out. Coarse dirt, such as sand or mud, is best left to dry, and then gently brushed off with a soft brush. This method works especially well for boiled wool overalls, which are frequently used daily, as it easily removes typical playground stains. We love the "Wunderbürste" by Leistner, which is ideal for cleaning boiled wool.

If you do need to wash the boiled wool clothing, make sure to use a good wool detergent that contains lanolin (the natural wool fat) to restore the wool’s natural oils during washing. The Babybox Collection offers its own brand, so you don’t need to worry about a thing.

Boiled wool walk is a true natural wonder, made from 100% pure virgin wool—sheared directly from live sheep. After shearing, the wool undergoes a careful process: it is washed, carded, stretched, and spun into yarn. This yarn forms a loose fabric. However, the heart of the production is the "fulling" process. Here, the wool fabric is treated with warm water and worked intensively. Through rubbing and pressing, the fabric compacts and shrinks by 20-60%. The result? A thicker wool fabric with characteristic air pockets that provide the distinctive warming and temperature-regulating properties of wool walk.

The best part: Only natural processes are used in this production, with no chemicals or softeners involved. Only clear water is used.

Wool fleece is made from natural wool, obtained from sheep. After shearing, the raw wool is thoroughly cleaned to remove dirt, grease, and impurities. The wool is then carded, which means it is combed to smooth and align the fibers, creating an even, loose fleece. In some cases, the wool is also spun, but for wool fleece, it is often left unprocessed to maintain its fluffy structure.

In the next step, the wool is lightly felted by controlling moisture, heat, and movement. This causes the wool fibers to slightly interlock, giving the fabric its characteristic soft and cozy texture. Finally, the surface of the wool fleece is lightly brushed to enhance the fluffy feel. This process can be done through brushing or fulling. The finished fabric is then further processed depending on its intended use and cut into warm, breathable clothing or other textiles.

Boiled wool is water-resistant but not waterproof. Therefore, we recommend always putting a raincoat and rain pants over the boiled wool overall or jacket when it's raining. This way, your child is protected from moisture while still enjoying the benefits of wool. The same applies to wool fleece.

Boiled wool is suitable for colder temperatures, typically down to -15°C, due to its dense and insulating structure, which provides excellent warmth and wind resistance.

Wool fleece, on the other hand, is more suitable for milder cold conditions, generally down to around -5°C. It is softer and more breathable but less windproof and insulating compared to boiled wool, making it ideal for less extreme cold weather.

Both materials perform well when layered properly, but boiled wool offers more protection in harsher winter conditions.

Since boiled wool is a denser and more windproof material than wool fleece, and therefore has higher insulation capabilities, you can use boiled wool at temperatures as low as -15°C. It is always important to consider the layers of clothing your child wears under the boiled wool jacket or overall. Opt for a layered approach (the "onion look") and ensure that the layers your child wears underneath are made of wool or wool-silk blends whenever possible.

Wool fleece, due to its softer and more breathable surface, is better suited for milder cold temperatures. We recommend not going below -5°C. As with boiled wool, the choice of layers underneath is crucial. Since wool fleece is so soft, it works particularly well as an underlayer beneath windproof jackets or rainwear, providing your child with good freedom of movement.

Clothing made from boiled wool and wool fleece is generally designed with a looser cut to accommodate additional layers underneath. This allows you to further optimize warmth by adding suitable clothing layers. We always recommend wearing extra layers of wool clothing (such as cashmere, wool & silk, alpaca, etc.) under a wool suit or jacket. The bottom layer, which is the one closest to the body, should be made of wool to ensure optimal temperature regulation.

Boiled wool generally provides better insulation than wool fleece. This is because boiled wool has a dense and compact structure that offers excellent insulation and is particularly effective at protecting against cold wind. As a result, it is well-suited for very cold temperatures down to -15°C, depending on the clothing worn underneath. Wool fleece, on the other hand, is softer and more flexible, making it more comfortable to wear but not as effective in extreme cold conditions as boiled wool. It is better suited for milder temperatures down to around -5°C and works well as an additional layer under windproof or rain gear.

In general, both wool walk overalls and wool fleece overalls are cut slightly larger to allow you to comfortably layer multiple pieces of clothing underneath. Therefore, we recommend choosing the size that currently fits your child. For example, if size 80 fits well, we suggest opting for the next size up, which is 86/92, to ensure the overall lasts throughout the winter. It is also important to note that if the suits are too large, your child will need to use additional energy to warm up and maintain the warmth of the air pockets within the suit.