What is the Difference Between Lycra and Spandex?

Question: What is the difference between spandex and Lycra fibers? Is there any technical difference? And what are the fabric properties differs for cotton/spandex fabric and cotton/lycra fabric?

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FAQ – Identity Costuming

Elastane vs Spandex vs Lycra What is the Difference

What is the difference between Lycra cotton and double stretch

What is the advantage of Lycra compared to other types of spandex for clothes manufacturing? - Quora

Raw Materials Requirement for Making Men's Formal Trousers

Elastane vs Spandex vs Lycra What is the Difference

LYCRA-SPANDEX structure uses applications gcse igcse gce A Level

What is the difference between Lycra cotton and double stretch cotton? - Quora