The performance and comfort factors of garments during usage are very important. Generally, the comfortable stretching of fabrics according to body movements as well as recovery after stretching, are good desirable properties. In recent years, due to the demand for more comfortable clothing, which is more adjustable to the body and has stretchable characteristics, elastane-containing denim fabrics for casual wear have been increasingly preferred. In this study, performance characteristics of five different denim fabrics containing various percentages of elastane were compared. After that, mechanical properties such as tensile and tearing strength, bending rigidity, stretching (elongation, maximum elongation, permanent elongation, elastic recovery) and bagging characteristics of the fabrics were tested. The results were evaluated statistically, and the differences between the mean values were found to be significant. The test results revealed that increasing the amount of elastane usage in denim fabric offers enhanced comfort properties.