Expertly crafted and multi-functional, Native Northwest Cork Base Travel Mugs boast a premium 304 stainless steel interior, double wall construction, a BPA-free push-on lid, and a sophisticated cork base to protect surfaces from scratches. A must-have for maintaining temperatures, these sleek travel mugs can keep beverages hot or cold for extended periods of time. Packaged in a colorfully designed box featuring artist and product details.