The perfect vessel to enjoy any beverage. The cork used in ourbands is sourced sustainably from the ancient cork oak forests ofPortugal. The KeepCup Brew Cork Edition has excellent thermalproperties, ideal for enjoying hotter beverages such as a longblack or black tea. Furthermore, it also has great aestheticqualities and is lovely to feel and hold. Over time, its patinawill tell the story of your use. Being a natural product, cork isdelicate. We urge users to look after it like a dear friend. Forbest results, do not remove the band from the cup and wash gentlyby hand. The names Press and Filter simply distinguish thedifferent colour options available.