The advantage of wool is the temperature balance, it warms on cold days and cools on warm days. This is especially important for the smallest babies, as they are not yet able to regulate their temperature. On the other hand, wool is breathable, windproof and waterproof. It can absorb liquid and release it into the surrounding air. The fibres are elastic and have a high resilience. The surface of the fibre repels or hardly absorbs dirt, so clothes made of wool also do not need to be washed often.