TRANSPORT – WARMTH – WEATHER PROTECTION are the central tasks of functional workwear. In a layer by layer design, functional clothing reacts to temperature fluctuations and changing weather conditions. The goal is to keep the body constantly at an 'operating temperature'. Several thin layers on top of each other work much better than one thick garment. If the function of the layers are also matched, the onion principle assumes a dual function: regulation from the inside, protection on the outside.