A whimsical algebraic equation unfolds across a cream ground, with zebras substituted playfully into each line of mathematical notation to transform abstract symbols into living creatures. The monochromatic pen illustration progresses from a formal formula at top through increasingly chaotic simplifications, culminating in three striped zebras standing side by side as the final punchline. 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.