 The study investigates the thermal conductivity, resistance, absorptivity, and maximum heat flow properties of shirt linen fabric subjected to various finishing treatment such as enzymatic, softening, and wrinkle resistant treatments. The findings showed that all finishing processes improved thermal conductivity and resistance values while causing higher thermal absorptivity and cooler feeling at first touch. Enzyme and treatment types had significant effects on maximum heat flow. The highest water vapor permeability was obtained when the enzyme, softener, and crosslinker were applied together. However, finishing treatments negatively affected air permeability due to high shrinkage feature. Overall, the study found that most finishing processes are favorable for thermophysiological comfort of shirt linen fabrics, especially in summer season. This article was authored by Eiland Semedal-Basai and Gonca Osilic Caesari.