In order to assure comfort in wear, clothes must have certain value limits for: thermal resistance, water vapours permeability, air permeability, sorption, transfer and yield characteristics regarding the humidity; otherwise, it may appear unpleasant sensations (thermal, humid, tactile and/or general), sometimes of extreme intensity. The results of experimental researches, that are presented in
... [Show full abstract] this paper, have demonstrated that, for the articles with a corresponding porosity, exists a strong dependence (positive correlation) between water vapours permeability and air permeability, an aspect that is very important in designing textile structures that are wear in an worm medium.