Add flexibility to your camp kitchen setup with the humangear cupCUP—use it as 2 separate cups, or snap them together for an insulated mug. Interior volume markings help you measure when cooking, too. The handles easily snap together to combine both cups into 1 insulated mug. The press-in sipping lid has a silicone gasket to minimize spilling when you're using the cupCUP as an insulated mug. BPA-free, PC-free, phthalate-free.