A technical patent drawing for ice hockey equipment dominates this chalkboard-style composition, rendered in crisp white line work against a deep charcoal ground. Three detailed mechanical views showcase the invention from multiple angles, capturing the industrial precision of early sports engineering with the weathered authenticity of a vintage blueprint. 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.