Rucksack

A rucksack was a kind of bag with straps that could be worn over the shoulders.

In 2009, a gang of drug dealers from the Machen estate carried drugs in rucksacks, and stored their bags in an abandoned double decker bus. (PROSE: The Wrong Hands)

A few days later, Ianto Jones would booby-trap a rucksack with flash grenades and take it into Conlan & Co. Electronics, where he expected to enter combat with the business owner Alix and his bodyguards. (PROSE: Virus)