A vertical sequence of moon phases progresses down the center of a black field, rendered in grayscale with detailed surface texture and craters visible on each celestial body. The composition moves from thin crescents at top and bottom through full illumination at center, capturing the lunar cycle in a stark, scientific yet meditative arrangement. 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.