Flowing layers of purple, lavender, and deep violet ink sweep across a white ground, creating organic undulations that evoke the banded patterns found within an amethyst geode. The composition moves from pale mauve at the top through increasingly saturated purples toward rich, nearly black depths at the base, capturing the luminous translucence and natural stratification of the mineral itself. Built from double-wall stainless steel and made to order, holding 20 ounces with a snap-on lid, a standard-cup-holder fit, and wraparound artwork. Your commute carrying original art instead of another branded tumbler.