The shape is an important factor to form the garment style and manifest its beauty. It is affected not only by the style and design but also by the fabric properties. A systematic experiment was carried out by selecting twenty commonly used suit fabrics and making use of KES fabrics instrument. The main indexes were drawn by Principal Components Analysis (PCA), which mainly influenced the men’s suits shape. The obtained results will surely help to make the selection of fabric easier, provide the reference to the men’s suit design and manufacture, and thus produce high-quality men’s suits.