KbA (controlled organic cultivation) is the seal of quality for cotton that is grown without the use of chemical fertilizers and pesticides and, more recently, can also be processed without the use of environmentally harmful agents. This seal of approval is certified by state-approved and independent institutes. Organic Cotton is currently the best cotton quality from an ecological point of view. Due to its skin-friendly properties, Organic Cotton is ideal for underwear worn directly on the skin. It is particularly suitable for people who are sensitive to the skin.