A vintage-style map of Boston renders the city's streets in fine black lines against a cream background, with water features and parks depicted in shades of turquoise and dark green. The composition captures the urban grid with precise detail while maintaining a warm, nostalgic quality that evokes early-to-mid 20th century cartography. 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.