As consumers are becoming increasingly selective of what they wear on their feet, manufacturing encountered the problem of developing right footwear. It is widely accepted that the threedimensional model of foot can help in good shoe fitting. Footwear fitter have been using manual measurement for a long time, but the combination of 3D scanning systems with mathematical technique makes possible the development of systems, which can help in the selection of good footwear for a given customer. In this paper, we proposed new approach for finding footwear fit within the shoe last data base. Our new approach is based on the efficient algorithm for cutting 3D triangle mesh to several sections toward heel and toe. Then the area of each contour is calculated and compared with area of equal section in shoe last data base for finding footwear fit. The first step is to fill holes in triangle mesh; after solving this post-process problem, our method is applied for finding footwear fit within shoe last data base.