DILLING organic merino wool leggings/long johns for babies are exceptionally soft and comfortable to wear. They are made from organic merino wool of the highest quality and have been through a 16-hour environmentally-friendly treatment to remove itchy hairs at our Nordic Swan Ecolabel-certified dyehouse in Denmark. In addition to being soft and comfortable to wear, these merino wool leggings/long johns for babies are functional as well. They can help keep your child warm when it is cold and cooler when it is warm thus protecting against cold and against over-heating. This is because the natural properties of merino wool are sweat-absorbing and temperature-regulating.