Premium 600ml stainless steel tumbler with advanced vacuum insulation technology for 12-hour temperature retention. Sleek modern curve design features double-wall construction to prevent condensation and maintain drink integrity. High-grade 18/8 stainless steel interior ensures corrosion resistance and pure taste preservation. Ceramic-coated sliding lid offers smooth operation and splash-proof functionality. Ideal for office commuters, outdoor adventures, and home barista use. Mirror-polished exterior with durable scratch-resistant finish. BPA-free materials meet international food safety standards. Customizable bulk order options available for corporate gifts or retail resale.