shopping bag
US /ˈʃɑː.pɪŋ ˌbæɡ/
UK /ˈʃɑː.pɪŋ ˌbæɡ/

1.
a bag, especially one made of paper or plastic, used for carrying things bought in a shop
:
•
She carried two heavy shopping bags filled with groceries.
•
Don't forget to bring your reusable shopping bag to the supermarket.