From Longman Dictionary of Contemporary Englishsweatbandsweat‧band /ˈswetbænd/ noun [countable] 1 DCCDSa narrow band of cloth that you wear around your head or wrist to stop sweat running down when you are doing sport2 DCCa narrow piece of cloth that is sewn on the inside of a hat
Examples from the Corpus
sweatband• You will not be allowed to wear a sweatband or jewellery such as earrings, necklaces, bracelets or rings.• Call John Girling on for your free running vest, car sticker, sweatband and sponsor form. 