... . Stainless steel Specification: Model numberKMS-H006DescriptionWelding stainless steel hip flask/whisky flask/liquor hip flask/engraved stainless steel hip flaskMaterial201 (18/0) or ... , SGS, LFGB, Eco-friendly, BPA freeFactorySEDEX Audited, ISO9001:2008 Hip Flask