This sophisticated double-wall vacuum mug combines engineering excellence with everyday practicality. The dual-layer insulation system creates an effective thermal barrier, keeping beverages at your preferred temperature for extended periods. Its 400ml capacity strikes an ideal balance between portability and functionality, making it suitable for office environments, commutes, or outdoor activities. The vacuum-sealed construction eliminates external condensation while maintaining structural integrity through repeated use. Built for discerning users who demand reliable performance and durability in their drinkware.