From Longman Dictionary of Contemporary Englishloose-fittingˌloose-ˈfitting adjective LOOSEloose-fitting clothes are big and do not fit your body closely, so that they are comfortable SYN baggy OPP tight-fitting, tight a loose-fitting jacket
Examples from the Corpus
loose-fitting• I wore loose-fitting clothes to protect me from the heat of the sun.• They were both pale-faced, hot and dishevelled, and dressed in loose-fitting crumpled clothes.• Patsy, 24, wearing a loose-fitting dress and comfy sandals, filled eight carriers when she unloaded her trolley.• I might wear trousers or, at the moment, a pair of loose-fitting ski-type pants.• A normal, loose-fitting skirt can be split up the side and fitting with a Velcro fastening.• A kung fu suit should be loose-fitting, with buttons and a high collar. 