Combining the example of drawing die design for the rear side member of automobile body, studied on the drawing die structure design of saddle-shape part.

The said connecting part connects with front side member and rear side member separately to make the composed box border sheet capable of folding in side direction.

The utility model relates to shoes. The rear part (or the rear side part) of a shoe body is provided with at least two slots. Besides, each slot is provided with an opening and closing member.