Joefrex new Barista Steam Cloth is unique as it features 3 separate layers, consisting of a microfiber front and back with a silicone center. The white side is for wiping the steam lance, and the dark side to clean surfaces and other parts of the machine. The special integrated silicone layer in the center prevents steam and hot water from penetrating the cloth and enables you to clean and wipe the steam lance even while steaming.