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),
However, when you add up the ounces you get a new label for mass: If you have 16 ounces, it can also be called a pound (lb). Typically, this is the unit that you use to measure your own weight. 1 pound = 16 ounces. Pounds are used to measure lots of things from people to food to animals. Tom says he weighs 90 pounds.