AmazonBasics Insulated Paper Cup, 16 oz., 240-Count – Link

Amazon has this currently marked down to just $19.13.

• 16 ounce insulated paper cup; includes 240 cups
• Polyethylene lining for resistance to leaking and moisture penetration
• Insulated double-walled design keeps hot beverages hot for longer; comfortable to hold
• Ideal for to-go orders, cafes, food trucks, and other types of hot beverage service