Выражение встречается в следующем контексте:Sweat bands, and hair bands
may be worn if desired, and of suitable coloration and design.

Заранее спасибо

e.g.
No head wear is to be worn in the classroom with the exception of sweat bands and hair bands

http://www.k12.nf.ca/tricentia/Studenthandbook(page2).htm

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