Milky white and softly translucent, our Purio mug adds timeless polish to the table. A mixture of bone ash and porcelain clay, bone ash has long been prized as much for its durability as for its luminosity and pure white color. The lightweight and delicate-looking coffee cup is exceptionally sturdy with strong edges and excellent scratch resistance. Paird with the coordinating saucer, mug is a modern classic.