Stretchy Flyknit Running Shoes Upper

Stretchy Flyknit Running Shoes Upper

Stretchy flyknit running shoe uppers are precision-engineered, single-piece textile components designed for modern athletic footwear. They combine seamless 3D construction, dynamic elasticity, and maximum breathability to elevate performance, comfort, and structural durability.
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Description

Technical Parameters

Introduction

 

Stretchy flyknit running shoe uppers are precision-engineered, single-piece textile components designed for modern athletic footwear. They combine seamless 3D construction, dynamic elasticity, and maximum breathability to elevate performance, comfort, and structural durability.

 

Product Specifications

 

Specification Category

Details & Parameters

Material Composition

Recycled Polyester (RPET), Nylon, Spandex, High-tenacity Poly yarns

Knitting Technology

3D Flat Knitting / Computerized Jacquard Weaving

Key Performance

4-Way Stretch, Anti-Pilling, High Tear Strength, Moisture-Wicking

Eco-Compliance

GRS Certified, OEKO-TEX Standard 100, REACH Compliant

Application

Professional Running Shoes, Marathon Footwear, Casual Joggers

Size Range

US Men 7-13 / US Women 5-11 (Customizable per Last)

Customization

Color, Density, Pattern, Logo Integration, Stretch Modulus

 

Core Performance Advantages

 

Targeted Elasticity: Zoned weaving technology ensures flexible toe-off and locked-in heel stability.


Sustainable Manufacturing: Produced using GRS-certified recycled yarns, helping brands meet global carbon-reduction targets.


Precision Edge Finishing: Heat-set and tightly locked edges designed for seamless direct-to-sole bonding or traditional strobel stitching, reducing shoe factory preparation time.


High-Tension Tear Resistance: Engineered with high-modulus core-spun yarns to withstand rigorous finger-pulling during shoe-lasting and high-stress lancing without loop distortion or yarn breakage.

 

R&D Capabilities

Rapid Prototyping

Turn your design sketches or 3D shoe-last data into physical uppers within 3 to 5 days.

Advanced Equipment

Equipped with industry-leading computerized flat-knitting machines (Stoll / Shima Seiki).

Engineering Support

Professional R&D team offering expert consultation on yarn selection and structural tension optimization.

 

Quality Control & Certifications

 

Rigorous Lab Testing: Every batch undergoes strict testing for color fastness, burst strength, and elongation recovery.
Global Certifications: ISO9001, GRS (Global Recycled Standard), and OEKO-TEX Standard 100 certified manufacturing facility.

 

Manufacturing Strength & Factory Capacity

 

Production Scale: 50,000+ square meters facility with a monthly output of over 1 million pairs of uppers.
Reliability: 98.5% on-time delivery rate backed by streamlined digital production management.

 

Packaging & Logistics

 

Standard Packaging

Flat-packed in moisture-proof polybags, organized in reinforced export-grade corrugated cartons to prevent deformation during transit.

Shipping Options

Flexible global logistics support including FOB, CIF, DDP via Sea, Air, or Express (DHL/FedEx for samples).

Lead Time

7-15 days for bulk production depending on order volume and complexity.

 

Production Details

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Product Qualification

 

Strength proves trustworthiness

 

 

qualification

 

Ingenuity manufacturing, strength exhibition

 

 

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Our Certificate

 

Certificate

 

Frequently Asked Questions

 

Q: What is your Minimum Order Quantity (MOQ) for custom uppers?

A: Our standard MOQ is 500 pairs per color/style for custom designs. Lower quantities can be discussed for trial orders.

Q: Can I get free samples before placing a bulk order?

A: Yes, standard existing samples are free. You only need to cover the international courier cost.

Q: How long does it take to develop a new custom flyknit upper?

A: Sample development typically takes 3 to 5 days once the digital design or specifications are confirmed.

Q: Are your flyknit uppers compliant with international environmental standards?

A: Yes, our materials are OEKO-TEX Standard 100 certified and we offer GRS-certified recycled polyester options.

Q: Do these uppers require any special processing before attaching to the shoe sole?

A: No, our uppers feature pre-treated edge locking, making them ready for direct solvent/hot-melt bonding or traditional stitching.

Q: Can you integrate our brand logo directly into the knit pattern?

A: Yes, using advanced computerized jacquard weaving, we can seamlessly embed logos, gradients, and custom patterns into the upper.

Q: What payment terms do you accept for B2B orders?

A: We generally accept T/T (Bank Transfer), L/C at sight, and trade assurance orders via major B2B platforms.

Q: How do you ensure consistent quality across mass production?

A: We follow strict ISO9001 quality control protocols, inspecting raw yarn tension, knitting precision, and finished dimensions at multiple checkpoints.

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