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Lastex is a type of elastic yarn that was introduced in the 1930s and was primarily used for swimwear, brassieres, girdles and corselettes. It consists of a rubber core surrounded by wool, rayon, silk or cotton threads.[1] It was invented and distributed by the Adamson Brothers, a company owned by the US Rubber Company. It entered the market in 1931.[2]


  1. ^ Schmidt, Christine (2013). The Swimsuit: Fashion from Poolside to Catwalk. A&C Black. p. 81.
  2. ^ Farrell-Beck, Jane; Gau, Colleen (2002). Uplift: The Bra in America. University of Pennsylvania Press. pp. 62–63. ISBN 0812218353.