Details:

• Do not use this Rambler Bottle Cap with carbonated beverages, as storage for food or perishables, or to store boiling contents or with contents above 185F/85C.
• 18/8 Stainless Steel: Made with kitchen-grade stainless steel, so theyre puncture and rust-resistant.
  
• Double-Wall Vacuum Insulation: Keeps cold drinks cold and hot drinks hot until the last sip, and the No Sweat exterior keeps your hands dry and unaffected, no matter how hot or cold the beverage inside.
  
• Dishwasher Safe: Because no one needs more work to do.
  
• 100% Leakproof: Carry it with confidence.
• Compatible with straw cap accessory (sold separately)
• Colour: Limited Edition Big Sky Blue