How to identify the quality of uppers

Vamp material scienc：Top layer leather Second layer Litchi leather Patent leather Suede Nubuck leather

There are many materials for the production of sports shoes, and the factory's processing technology is superb. Such as AJ, Yeezy and other series

Economic laws, businesses will not lose money. If you buy very cheap shoes, the materials are selected with low cost, and the workmanship is fast. At the same time, there are too many gorgeous and confusing nouns. It sounds tall, but it is actually just a craft.

1.upper

Help surface materials generally include: leather, PU, mesh. Various materials are used in combination

1.genuine leather

Genuine leather is also natural leather, breathable, soft, fold-resistant and cold-resistant; sports shoes use the most cowhide, which is thick and will be layered when used.

1) What are the first and second floors?

The head layer: also called pearl skin, which is the original animal skin, or the upper layer of the thick skin, with dense fibrous tissue;

Two-layer: also called film-moving leather, two-layer thick leather split, coating or filming and other series of processes to make two-layer leather, poor wear resistance and durability

2) What kind of skin is lychee skin?

Litchi skin is actually a later artificially printed lychee pattern.

There is no such pattern in natural leather, and it is usually printed on second-layer leather or repaired inferior first-layer leather to make the leather look more textured. Over time, it is easy to collapse and have creases.

In fact, high-quality scalp skin will retain its natural texture. The texture of lychee depends on personal preference.

3) Is suede "buckskin"? What kind of leather is nubuck?

Suede is not "deerskin", it is leather or faux leather that is polished to imitate deerskin. Natural suede may be cowhide, sheepskin or pigskin, etc. There are also artificial suede. There are two types of grinding processes:

1. The inner side of the leather is polished: the particles are larger, and after tanning and other processes, it presents a velvet-like touch, so the English name of suede is Suede

2. Polish the outer side of the leather: the texture will be more delicate, closer to the real suede, also called Nubuck.

How to clean suede care:

If it's just ordinary stains, use a soft brush or nylon brush to clean up the bristles

Immersion in beverage liquids, etc., requires the use of special cleaning agents

4) What kind of leather is patent leather?

Patent leather is a technical process of leather finishing, which refers to pouring paint on materials such as genuine leather or PU leather. Cleaning: generally use a clean and soft dry cotton rag to wipe, patent leather spray brightens, be careful not to scratch.

2.PU leather

It is also artificial leather, polyurethane composition, with genuine leather texture and low cost.

Soft, elastic, good feel, shiny surface, poor air permeability. To ensure breathability, PU leather and fabric are applied to the upper. For example, many leather shoes bought for about 100 yuan are PU leather

3. Sandwich mesh/textile fabric

Cotton, acrylic, polypropylene, spandex, non-woven fabrics, composite mesh fabrics, etc.

Such as sandwich mesh, polyester woven, three-dimensional structure like a sandwich. It is light and has good breathability and bending resistance when used in the exposed place of the upper surface.

2 Shoe neckline and lining cloth

Neckline accessories to protect feet, such as velvet, BK cloth; lining cloth such as Lixin cloth. The main features are wear resistance, good ventilation, waterproof, anti-mildew, anti-bacterial and anti-static.

Lixin cloth is: environmentally friendly PET as raw material, stitched non-woven fabric. Polyester staple fiber and polyester yarn are stitched.

Three tongues

Corresponding help surface material + internal filling. The inferior ones are generally filled with sponges, and the better ones are filled with thermally bonded non-woven fabrics.

TipsThe easy way to identify the top layer, second layer and artificial leather:

1. Press down by hand, if there are uneven leather wrinkles, it is real cowhide

2. Dripping water will infiltrate the top layer of the skin; the transfer film (two layers), PU/PVC artificial leather, PU synthetic leather cannot penetrate the water

Tips：How to identify the quality of uppers:

·For smooth shoes, it is plump and soft, comfortable to the touch, uniform in gloss, and no loose surface is pressed down by hand

· For the upper of suede shoes, attention should be paid to check whether the fluff is short and uniform, and its color tone should also be consistent

·In the shoe, the upper is reinforced. Comfortable to the touch, breathable and moisture-wicking, and non-fading. Sewing without wrinkles and fat edges

· Observe whether the overall upper line, workmanship, etc. are exquisite, whether it is placed on the ground smoothly, etc.

In addition to brand and style design factors, each sole, vamp, workmanship, material, glue, wiring, including shoelaces, are different and have their own positioning pricing.