White mathematical formulas and equations densely cover a charcoal gray ground, creating an all-over pattern of scientific notation and symbolic language rendered in a handwritten style. The composition feels like a visual representation of pure intellectual thought, with the chalk-like marks suggesting a blackboard filled with the accumulated work of mathematical inquiry. 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.