haversack
US /ˈhæv.ɚ.sæk/
UK /ˈhæv.ɚ.sæk/

1.
tas punggung, tas bahu
a bag carried on one's back or over the shoulder, used especially by soldiers or hikers
:
•
He packed his lunch and water bottle into his haversack before heading out for the hike.
Dia memasukkan makan siang dan botol airnya ke dalam tas punggungnya sebelum berangkat mendaki.
•
The soldier carried his essential gear in a sturdy canvas haversack.
Prajurit itu membawa perlengkapan pentingnya dalam tas punggung kanvas yang kokoh.