Vintage Small Design: This stylish portable water bottle combines vintage aesthetics with compact size, offering a fashionable vintage look perfect for those who love unique small flask Effective Temperature Retention: Built in insulation layer keeps drinks hot or cold at ideal temperatures, whether it ' s coffee, tea, or refreshing cold beverages Portable: With its small size and handle, this stainless steel cup easily fits in bags or pockets, making it ideal for daily commutes, gym, or outdoor activities Premium 316 Stainless Steel: Made from rust resistant, this insulated flask ensures durability and safe drinking by and maintaining liquid purity Direct Drinking: perfect for quick hydrations during busy workdays or workouts