We have been testing the same shirt in the washing machine now for 200 washing cycles and the results are very good. The shirt stays in shape and looks the same as the very first wash. This new type non sweat business shirt is going to be your favorite long sleeve business shirt for sure. It doesn't go out of shape and in summer the comfort is amazing. Even in winter the special KoolBiz fabric is soft and warm so its a dress / business shirt you can wear all year round.