Along with the development in the technology, products that supply personal comfort and ergonomically appropriate designs have become more significant. For this purpose, the technical characteristics of fabrics make lives easier and they are no longer luxury. In particular physiological comfort properties of the materials used in the design of primary school students' school clothes have great importance. Designs should not limit the movements of the children, should be appropriate for health and be enriched with features to facilitate the daily lives of the children. In this study, performance and various comfort properties of knitted fabrics that are used in the production of school outwears were investigated. For this purpose, six different single jersey fabrics made from different materials were used. Thickness, abrasion and pilling resistance, bursting strength, stretchability, air permeability, water vapor permeability and moisture management properties of the fabrics were measured. Test results were compared by using statistical methods. By taking the seasonal changes into account, the most appropriate material for usage was aimed to be suggested.