the.com/rucksack

A backpack that survived the German army and your dad's hiking phase.

means A bag with shoulder straps you wear on your back to carry gear, especially for hiking or travel.

from Borrowed straight from German: 'Rücken' (back) plus 'Sack' (bag, sack) — a backpack, literally. It marched into English largely through military and mountaineering use, where German gear and terminology set the standard, which is why it still carries a faint whiff of army surplus and alpine trails.

etymology
from German ruecken, back, plus sack
military roots
standard issue term for soldiers worldwide
us vs uk
americans say backpack, brits say rucksack
same object
just a bag with straps, rebranded by geography
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