 This study examines the complex relationship between fiber nature, fabric structural characteristics, wet processes, and air permeability and water vapor resistance in knitted fabrics, finding that bleaching and dyeing, along with elastane content, affect these properties. 100% cotton fabrics have higher warm call feeling due to higher air permeability than elastane containing fabrics. Bleached knitted fabrics show higher air permeability and lower water vapor resistance than dyed, while softened elastane containing fabrics have decreased air permeability and increased water vapor resistance due to cationic softener pickup mechanism. The comfort properties of finished knitted fabrics decrease with elastane incorporation and softening. This article was authored by Aleksandra Ivanovska, Mijana Relcik, Mijana Kostik, and others.