What Is A Double Wall Coffee Paper Cup?

See the photo below: there are 2 layers.
One layer exterior of the cup, and insulated between these 2 walls, so it can insulate heat, better protecting your hand.
It will not leak, since there are 2 layers, the cups are more sturdy, strong and tough.
Only very hot coffee, hot tea, we suggest double-walled cups.
If normal weather drinks, to better protect our environment, single-walled cups are good enough.
Single-wall cups will save paper material, energy, reduce carton size, save transportation cost, and save money.
So choose a proper cup, provide more options for your clients, but try to be more environmentally friendly.