In the Strobel construction system, the upper, and in some cases the membrane are closer to the sole. Depending on the process and the machinery used, the upper and the membrane are both sewn to the midsole or sole. Varying from model to model, the sole can be glued or injected. Shoes from this type of construction are more durable and very comfortable.
The Moccasins construction system is characterized by having only one layer that forms the insole and the upper. Thus, the piece is molded from the bottom surface of the mold to the top, being fixed with a seam on the front of the upper. Finally, the sole can be fixed by gluing, by direct injection to the cut or by gluing and stitching. This construction system results in very comfortable shoes.
This type of shoe construction is very similar to Stitch Down only with the particularity the upper is folded around the midsole, making the seam cross it on both sides. Usually, the sole is fixed by gluing. In this type of construction, we can also find a double seam. The shoes from this type of construction are resistant and quite comfortable.
This construction system is characterized by the way the upper is secured using only glue. The upper is glued to the midsole a few centimeters where the sole is subsequently glued. This type of construction is one of the most used in the footwear industry since it can be implemented to produce a wide range of different models. In this construction system, there is no need for seams or physical gluing.
Bologna / Sacchetto
The Bologna construction system is a slightly simpler version of the “mocassin” construction system. In this system, the assembly is reversed, only by the lining. The upper structure of the shoe is sewn to the sole or glued.
Pratick / Stitch Down
The “stitch down” construction is characterized by the way the upper leather is pulled out and attached to the midsole with the commonly called “quick stitch”. The sole is then glued to the midsole. In this type of construction, we can also find a double seam. The shoes produced from this construction type are very comfortable and very durable. It is also a process widely used in the manufacture of children’s shoes.
This construction system is one of the first mechanized systems for shoe construction. It is one of the simplest, fastest and most economical ways to produce good quality footwear. A seam that crosses the insole, upper and sole is used.