duffel bag
noun [ C ] (also duffle bag) uk/ˈdʌf.əl ˌbæɡ/ us/ˈdʌf.əl ˌbæɡ/
UK圆筒包，收口提袋
a tube-shaped cloth bag with a circular bottom and a thick string at the top that is used to close it and carry it
US圆筒形旅行包
a long bag used for carrying clothes, etc. when you are travelling