lastex
/ˈlæstɛks/
noun
- A type of elastic yarn or fabric made with a rubber core wrapped in cotton, silk, or synthetic fibers, used in clothing that needs to stretch.
- The waistband of these swim trunks is made with lastex for a comfortable fit.
- She sewed a strip of lastex into the cuffs of the jacket to keep out the wind.
- Vintage girdles often used lastex to provide both support and flexibility.