backpack

a bag that you carry on your back, used especially for carrying books or clothes when travelling

mochila, bolsa de viaje

• carry a backpack

Collocations school backpack · travel backpack

• I need to buy a new backpack for school.

  Necesito comprar una nueva mochila para la escuela.

a bag that you wear on your back when playing a sport such as skiing or climbing

bolsa de deporte, mochila para esquiar / escalar

• wear a backpack

Collocations skiing backpack · climbing backpack

• He wears a special backpack for skiing.

  Él lleva una mochila especial para esquiar.