Premium 510ml vacuum-insulated coffee mug with advanced heating technology for optimal temperature retention. Crafted from durable 304 stainless steel with double-wall construction to prevent condensation and burns. Features a custom-fit lid with leak-proof silicone seal for spill-free portability. Ergonomic design fits standard cup holders, ideal for commuters, office use, or outdoor adventures. Patented heating system maintains beverages at perfect serving temperature for 6+ hours. Matte exterior finish resists fingerprints and scratches while providing secure grip. Microwave-safe removable inner components for easy cleaning. Commercial-grade insulation outperforms standard travel mugs with 30% better heat retention. BPA-free materials meet FDA food contact standards. Bulk purchase available with wholesale pricing for retailers and corporate gifting programs.