Premium 304 stainless steel construction ensures durability and rust resistance for long-term use. Double-wall vacuum insulation maintains beverages hot for 12 hours or cold for 24 hours. Sleek matte finish with laser-engraved logo option for premium corporate gifting. Leak-proof swing lid features one-touch opening and 360° sipping convenience. Ergonomic curved design fits car cup holders and backpack side pockets. Available in 600ml/800ml/1000ml capacities with identical base diameter for universal accessory compatibility. FDA-approved food-grade materials free from BPA and toxic coatings. Ideal for outdoor adventures, office commutes, gym sessions, and hotel stays. Custom branding available for bulk orders with 10,000+ unit MOQ at wholesale pricing.