Premium stainless steel vacuum flask with double-wall insulation for 12-hour heat retention and 24-hour cold retention. Custom bamboo cover adds natural elegance and ergonomic grip. Built-in tea infuser allows easy brewing on the go with removable fine-mesh filter. 360° leak-proof lid with press-to-open button for one-handed operation. Mirror-polished 18/8 food-grade steel resists odors and stains. Laser-welded vacuum seal prevents condensation. Ideal for office commutes, outdoor adventures, or as a sustainable gift. Compatible with most loose-leaf teas and fits standard cup holders.