also: ウェストバッグ
noun
waist bag; belt bag; fanny pack; bum bag
A small bag worn around the waist, often with a belt or strap. In Japanese, ウエストポーチ is a common synonym.
See also: ウエストポーチ
旅行のときはウエストバッグが便利だ。
A waist bag is handy when traveling.
彼はいつもウエストバッグに財布
He always keeps his wallet in his waist bag.