Main components of shoes

1. Upper (upper) upper is one of the main components of shoes. For smooth shoes, it depends on whether they are soft and plump, and whether there is loose surface after pressing the vamp by hand. A good vamp should be plump and soft, comfortable to feel, uniform luster and no loose surface. For the upper of suede leather shoes, pay attention to check whether the fluff is short and uniform, and its color tone should also be consistent. The insole is a part of the upper. It is used to strengthen the upper, prevent the upper from extending and deforming, and improve the feel of the foot.

2. Insole: the back half of insole or heel pad is usually used for men's shoes. A full pad covering the insole for women's shoes. The insole can keep the insole clean and cover the unevenness of the insole, so as to improve the feeling of the foot. Therefore, insoles should have good moisture absorption and drainage. In terms of workmanship, the insole should be adhered to the inner sole flatly without hanging wrinkles.

3. Outsole: from the appearance, the bonding state around the outsole shall be closely bonded without gap, and the bottom surface shall be flat.