DOUBLE VACUUM INTERIOR DESIGN: Double vacuum interior design, interior and exterior are made of high quality stainless steel for excellent temperature control and long term durability.
EXCELLENT HEAT PRESERVATION PERFORMANCE: Vacuum heat preservation, double heat preservation, food tank heat preservation, so that food can stay delicious for a long time.
THERMAL INSULATION IMPROVEMENT: Keep food taste better, leakproof, reinforce stainless steel tank, slow heat release, improve thermal insulation.
THICKENED DESIGN: Thickened design, not easy to rust, corrosion resistance, high temperature resistance, and durable. Easy to carry and fine workmanship. Ideal for work, travel, picnic and outdoor use.
UNIQUE DESIGN: The vacuum insulated double wall lunch box with double vacuum internal design will not filter chemicals from food like heating food, ensuring health and keeping your family warm for meals.