the.com/elastane

the polymer that lets your jeans lie about how much you ate

means A synthetic stretchy fiber prized for its elasticity, blended into fabrics so they snap back to shape after stretching — better known in the US by the brand name Spandex.

from A 20th-century coinage built from "elastic" plus the chemical suffix "-ane" (the same one hanging off methane and propane), naming the family of polyurethane polymers. The fiber itself debuted in the late 1950s; "elastane" became the generic European term, while America took the anagram route and rearranged "expands" into the trademark "Spandex."

stretch power
Can stretch to five times its length
trademark name
Better known by DuPont's brand, Lycra
anagram origin
Spandex is an anagram of expands
tiny amounts
Often just 2-5% of a fabric blend
born 1958
Invented by chemist Joseph Shivers
for instance

spandex — trademarked elastane fiber invented by dupont in 1958, used in swimwear and athletic wear

lycra — dupont's branded elastane fabric launched in 1962, dominates high-performance sportswear market

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