Borosil Gosport Black Flask

• Keeps your drink hot for 14 hours and cold for 18 hours
  
• Insulated double wall vacuum with copper coating for maximum temperature retention
• 100% food grade stainless steel both inside and outside for safety, strength, and durability (18/8 quality, Grade SS304 inside and SS201 outside)
• Leakproof, condensation-free exterior so your hands and bag stay dry
• Cool to touch body with hot liquids and sweatproof with cold liquids
• BPA and Phthalate free-all plastic parts are food grade
• Non leaching and toxin-free for healthy drinking
• Mouth wide enough for ice cubes and drip-free sipping
• Fits standard size cup holder
• Sleek and thoughtful design makes it easy to carry in the side pockets of backpacks or bags
• Long last finish on the body which will not fade or wear out with usage
• Loop for easy carrying
• Screwtop sipper for easy sipping

Capacity: 600ml, 900ml