Lycra

Lycra is DuPont's brand name for spandex, a synthetic fiber known for exceptional elasticity. In hosiery, Lycra provides stretch, recovery, and improved fit.

Lycra vs Spandex

Lycra and spandex are the same material:

• Spandex: Generic name (anagram of "expands")
• Lycra: DuPont's trademarked brand name
• Elastane: European term for same fiber

Like "Kleenex" for tissues, Lycra became synonymous with stretch fiber.

History

• 1958: Invented by Joseph Shivers at DuPont
• 1962: Commercial production begins
• 1960s: Adopted by hosiery industry
• Present: Standard in nearly all hosiery

Properties

Stretch Characteristics

• Can stretch 500-700% of original length
• Returns to original shape
• Maintains stretch through washing
• Resists degradation from body oils

In Hosiery

• Typical content: 5-20% Lycra
• Higher Lycra = more stretch
• Enables better fit across size ranges
• Reduces sagging and bagging

Benefits in Hosiery

• Fit: Conforms to leg shape
• Comfort: Moves with body
• Durability: Resists runs spreading
• Recovery: Returns to shape after stretching
• Support: Light compression effect

Lycra Content Levels

Care Considerations

• Heat degrades Lycra over time
• Avoid hot dryers
• Hand washing preserves elasticity
• Chlorine damages fiber
• Body oils can weaken over time

Lycra Technologies

DuPont developed specialty versions:

• Lycra Beauty: Enhanced sheerness
• Lycra Soft: Increased comfort
• Lycra 3D: Better shape retention
• Lycra Leg Care: Compression support