Products & Services > CrystalFlex™ Fabric
CrystalFlex fabric by Milliken


A warp knit suspension fabric designed specifically for aircraft diaphragms.

CrystalFlex™ Fabric

Milliken’s Crystalflex™ fabric is a uniquely engineered knit suspension fabric designed specifically for use in aircraft seating support diaphragms.  It has remained the industry standard since its debut in 1996.  Over the past two decades it has enabled the continual evolution of aircraft seat system design towards maximizing passenger comfort and reducing weight and fuel costs, while optimizing seat system and assembly economics. Crystalflex fabric is lightweight, flame retardant, high-strength, breathable, recyclable, reliable, durable and proven.

Light Weight

  • • Reduce weight up to hundreds of pounds per aircraft (fuel savings) 
  • • Save space without compromising passenger comfort
  • • Design more seats per aircraft


  • • Simple, breathable, sleek & safe
  • • Provide comfort in all the right places
  • • Reduce pressure points & allow for a more comfortable passenger experience


  • • Used in over 1 million aircraft seats
  • • Trusted by the industry leaders
  • • Unmatched quality & durability


  • • Engineered specifically for aircraft fabric diaphragms
  • • Optimal FR chemistry for maximum safety & performance
  • • Unique warp knit structure provides best-in-class strength & stretch recovery
  • • Passes stringent crash dynamic testing & fully complies with aircraft flammability standards  

Product Specifications

  • Crystalflex™ fabric is treated to meet automotive and aircraft flammability standards fmvss302 (15 sec horizontal burn) and 14cfr 25 appendix f part i (a)(1)(ii) (12 sec vertical burn).

  • This 100% polyester based fabric is heat set and a flame retardant finish is added.

  • This fabric uses elastomeric yarns in the machine or warp (length) direction. It can be used as a support system replacing springs and existing decking fabrics. It is designed to be pretensioned during installation.

  • The fabric will be on tubes and wrapped in polyethylene sheeting.

  • The yards per roll and actual shipping is customized for each customer (standard roll length is 75 yards).

Product Information

CrystalFlex fabric by Milliken
​Milliken has been solving everyday problems with innovative solutions for over 150 years. An unwavering commitment to ethics guides our research, design and manufacturing expertise of performance and protective textiles, specialty chemicals and floor coverings.  In aerospace, our passion for problem solving and manufacturing of innovative products enables us to deliver industrial reliability in an ever changing and evolving aircraft seating industry.

Download a Brochure

Click to Download Brochure