500ml stainless steel vacuum insulated thermos cup with double-walled construction for superior temperature retention. Premium 18/8 food-grade stainless steel ensures durability and safe drinking experience. Advanced vacuum seal technology keeps beverages hot for 12 hours or cold for 24 hours. Sleek matte finish with custom logo option for branding needs. Ergonomic design features leak-proof lid and comfortable grip. Ideal for travel, office use, outdoor activities, and corporate gifting. Mirror-polished interior resists odors and stains. CNC precision machining creates seamless body structure. Compatible with most cup holders. Comes with matching stainless steel base to prevent surface scratches. Exceeds FDA and LFGB safety standards. Suitable for coffee, tea, water, and various beverages. Minimalist design complements any professional setting.