If a piece of clothing or part of a piece of clothing is elasticated, elastic has been sewn or woven into it to make it fit better and to help it keep its shape.
[British]
...a pink silk jacket with an elasticated waist.
regional note: in AM, use elasticized
elasticated in British English
(ɪˈlæstɪkeɪtɪd)
adjective
British
(of clothes) having elastic inserted
elasticated legs with inner cuffs give a snug fit and both nappies were very absorbent
a pink silk jacket with an elasticated waist
Examples of 'elasticated' in a sentence
elasticated
High noon, and a man strode out with a spyglass, notebook, knees showing above elasticated socks.