A detailed nautical chart depicts the Nantucket Sound region with pale gray landmasses and water rendered in soft cream tones, while coastal areas and shallow zones glow in warm butter yellow. The composition captures the precise, methodical approach of mid-century cartography, with fine contour lines, depth markings, and navigational details creating an intricate portrait of this New England maritime landscape. 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.