サブザック

noun

small knapsack

A small backpack, often used as a secondary bag or daypack. Wasei-eigo from English 'sub' and German 'Sack'.

wasei-eigo (Japanese-coined English), from sub · wasei (Japanese coinage from German), from Sack

See also: サブリュック

• 旅りょ行こうのときは、メインのバッグとは別べつにサブザックを持もっていく。

  When traveling, I take a small knapsack in addition to my main bag.