A patented press system stops steeping instantly, eliminating over-brewed bitterness while keeping your strainer fully integrated. Simply press and sip. Vacuum-sealed double-wall construction maintains optimal temperature for 12+ hours, while the leakproof lid ensures worry- transport through commutes, travel, and adventures. Crafted from powder-coated, medical-grade stainless steel with BPA-, lead- components, this tumbler withstands daily wear with grace. The disassemblable press system allows thorough cleaning, and a non-slip base provides stability on any surface.