Premium 18/8 stainless steel construction ensures durability and rust resistance. Double-wall vacuum insulation maintains hot/cold temperatures for 24 hours. Precision laser engraving allows for permanent custom logo application. Leak-proof screw lid with silicone gasket prevents spills during transport. Ergonomic curved design fits standard cup holders and gym equipment. Matte powder coating provides scratch-resistant textured grip. BPA-free materials meet international food safety standards. Ideal for corporate gifts, sports teams, gym hydration, and outdoor adventures. Commercial-grade thickness withstands daily industrial use. Bulk pricing available for wholesale buyers with custom branding options.