noun
shoulder bag; small crossbody bag
A small, lightweight bag worn across the body or over one shoulder, often used for carrying essentials like a phone and wallet. The term is a loanword from French 'sacoche' and is common in Japanese fashion contexts.
from French sacoche
旅行のときはサコッシュが便利だ。
A sacoche is handy when traveling.
彼女は小さなサコッシュを肩にかけていた。
She had a small sacoche slung over her shoulder.