with the ORANGE_LINE SIMLOC offers a line that proves especially in changing climatic conditions strength. With a new polyester on the inside of the fabric air regulation is ensured. The yarn is a hollow fiber and retains body heat in the yarn core. Once the skin temperature is lower, it releases the stored heat back. However, if the skin temperature higher than the pre-stored heat, the yarn opens the diaphragm and attempts to circulate cold air to the skin. In addition, the yarn is moisture wicking. The skin is always dry and the risk of colds by sweat on the skin is no longer given. This new yarn is combined with a very high quality cotton and the fabric has such a natural feel. It should also ORANGE_LINE, like all other lines of SIMLOC against odor and bacteria as well as UVA and UVB protection (+50) as standard.