Double-Wall Stainless Steel Metal Vacuum Construction with Copper Insulation, Which Allows Beverages to Stay Cold for 24 Hours or Hot for at Least 8 Hours. the Construction Also Prevents Condensation on the Outside of the Bottle. Screw-On Leak-Proof Lid with Magnetic Carry Handle That Keeps Cap Stowed While Drink. Ergonomic Drink Interface That Delivers a High Flow of Water Without Sloshing or Spilling. Wide Mouth Opening for Easy Cleaning & Filling. On-Trend, Durable Powder Coating. Volume Capacity is 600Ml. Lifetime Guarantee for Manufacturing Defects with Got Your Bak™. Minimum Quantities Apply.