A delicate paper nautilus floats against a cream background, its translucent shell rendered in warm browns and soft blues with intricate cross-hatching and fine line work. Smaller anatomical studies appear in the corners, documenting details of this remarkable cephalopod in the meticulous style of 18th-century natural history illustration. 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.