Advanced Temperature Retention: Engineered with double-wall vacuum insulation, keeping your cold beverages chilled for up to 24 hours and your hot drinks piping for hours. Striking Midnight Blue ... Aesthetic: Finished in a deep, matte-toned midnight blue coating that exudes modern elegance while offering a secure, slip-resistant grip. Leak-Proof Seal Technology: Features an airtight, high-grade silicone seal integrated into the lid, ensuring zero spills or leaks even when tossed into a backpack or gym bag. Optimal 520 ML Capacity: The ideal "just-right" size—compact enough to fit comfortably in standard cup holders and side pockets, yet spacious enough to fuel your morning commute or workout. Premium Build Quality: Constructed from food-grade, rust-resistant stainless steel that is entirely BPA-free, preventing flavor transfer so your water, tea, or coffee tastes fresh every time. Dimension (L x W x H) : 7.4 cm x 7.4 cm x 22 cm Weight : 340 gram