The Buzio large half gallon stainless steel water bottle features top of the line double wall vacuum insulation. It keeps your drink COLD for up to 48 hours, and HOT for up to 24 hours. Anti-sweat coating can keep the surface dry and clean, making it easy to grip. 64 oz/87 oz/128 oz Buzio insulated Water Bottle is made of premium 18/8 food-grade stainless steel that's BPA-free, hard to oxidize and able to prevent flavor transferring. Advanced powder coated will never rust, lead-free, and anti-slip. Its powder coating finish ensures a better grip. High quality laser engraved logo with modern and elegant appearances. There are many different capacities and different colors for your choices