Shoes upper

（一）What is a fly-knit shoes upper？

Flyweave uppers are a type of upper made using flywire weaving technology. This technique relies heavily on 3D unibody molding technology, where yarns of various colors are used as raw materials and a new braiding process is used to weave a single-layer upper that is almost completely seamless. The most important features of fly-knit uppers are their lightness, fit and breathability.

Features of Flyknit Upper？

Thinner and lighter
More beautiful
More breathable
More abrasion resistant
Better stretchability
Not easy to deform
More cost-effective

The use of this special weaving technology makes the upper highly breathable, which can effectively expel moisture and sweat from the shoe, keep the shoe dry, and effectively prevent foot odor and bacterial growth. At the same time, the fly-knit upper material is also lightweight and thinner than traditional materials, which is conducive to improving the wearer’s sports performance, reducing the burden on the feet and minimizing fatigue. In addition, the fly-knit upper material also has good toughness and wear resistance, after special treatment of the fly-knit material can effectively improve the wear resistance of the upper and extend the service life of the shoes.

（二）Who first invented fly-weaving?

Fly knit technology was first invented by Nike. Nike launched the fly knit technology called FLY KNIT in 2012, which is a technology that uses yarn fabrics, computer programmed to design the upper pattern, and then knitted together with the entire upper. Using 3D one-piece molding technology, FLY KNIT uses yarns of various colors as the raw material to weave an almost completely seamless single-layer upper that is lightweight, breathable, and fits the foot well. Upon its introduction, this technology has attracted widespread attention in the industry and popularity among consumers, and has spurred other sporting goods companies to follow suit and develop.

Nike Flyknit Racer Oreo 2

Nike Free Flyknit Mercurial

Air Jordan 31

Nike KD 9

（三）The material to be used for flyknit shoes uppers?

The materials used in fly-knit shoes uppers are diverse and mainly include blended fabrics such as chemical fibers, polyester、spandex and nylon. Such blended fabrics are characterized by the fact that their composition is not monolithic, but by the mixing of different materials to achieve specific performance requirements.