This study aims to analyze short sleeve cycling tops from three brands for a change in garment fit and pressuredepending on the static and cycling postures. To this end, it used a 3D virtual garment system to virtualize the garments. Further, a cross-section of the 3D virtual garment data was obtained, and the space length was measured in the design?X program to prove the objectivity of the 3D virtual garment. The results indicated that three brands had a large spacelength at the front than the back because of the bent posture in cycling. Therefore, appropriate ease was required for thewaist and abdomen. Although there were various cutting lines of the bodice panel by brand, the design of the cutting linesshould consider the changes in the surface to reflect the bent posture in cycling. The results of this experiment confirmedthat the wrinkles present in the 3D virtual garment were reflected in the cross-section and that the space length wassmall in the high-stress area, as shown in red. Therefore, it was proven the stress of the 3D virtual garment could beused for 3D virtual garment evaluation.