Flyknit

Flyknit is a proprietary knitting technology developed by Nike that creates a sneaker upper in a single piece using computer-controlled knitting machines and high-strength yarns. The design aims to deliver a lightweight, form-fitting, breathable upper with targeted support while reducing waste compared with traditional cut-and-sew construction.

Construction and materials: The upper is knit in a three-dimensional, seamless process with variable density across zones to provide structure where needed and ventilation elsewhere. Yarns commonly include nylon (polyamide) and polyester; some models incorporate reinforced areas around the toe, midfoot, and heel for durability and lockdown.

History and adoption: Nike introduced Flyknit in 2012 with models such as the Flyknit Racer, and the technology has since been used in numerous running, training, and basketball shoes. It complemented Nike's broader approach to lightweight, performance-oriented footwear.

Advantages and considerations: Flyknit uppers are typically lighter and offer a closer, sock-like fit with zonal support. The one-piece construction also reduces material waste during manufacturing. Durability and cost can vary by model, and some users report wear in high-stress areas; care and model selection are important factors.

Impact and sustainability: Nike has highlighted Flyknit's potential for reducing waste and improving material efficiency in production. The technology is part of broader efforts to create high-performance footwear with fewer offcuts and faster production cycles.