The Regal Sunshine Zenith is a premium insulated double-wall vacuum flask engineered for superior thermal performance, keeping beverages hot or cold for up to 24 hours. Built with high-quality 18/8-304 stainless steel and enhanced with an additional copper coating for maximum insulation, this durable flask is designed to maintain beverage integrity throughout the day. To suit different user preferences, it offers three versatile lid variants—Screw, Press, and Flip caps—and is available in four convenient sizes ranging from 350ml to 1000ml. Each unit features a sleek brushed-metal finish and comes complete with a protective designer carrying bag and an attractive gift box, making it an ideal choice for both personal use and professional gifting.