Elastane is the same as Spandex. Both are yarns that are knit/woven into fabrics, and contribute stretch and recovery properties to the fabric. Spandex is DuPontâs brand, elastane is the generic name.
In Latin 'Libra' are the symbol for the scales, hence the use of lb for weight (and lbs for the multiple),
The word pound comes from the Latin word pendere, meaning to weigh. The Latin word libra means scales, balances and it also describes a Roman unit of mass similar to a pâ¦ound. This is the origin of the abbreviation lb for the pound. Note also that lbs is incorrect for two reasons.