Laken Thermo Futura Vacuum Insulated Stainless Steel Water Bottle Narrow Mouth High performance vacuum insulated double walled stainless steel construction Keeps cold up to 24 hours (ice cubes recommended), keeps hot up to 12 hours 18/8 food grade stainless steel, BPA free with no leeching effect, retains the taste of the beverages and does not impart any flavors; No toxic powder coating Extremely durable, easy to carry, drink and clean, tight closure (even for carbonated drinks) Laken Narrow Neck Futura design, internal mouth diameter 1.3 inches, Made in Spain Sizes Available: .35L (12 oz), .5L (17 oz), .75L (25 oz) and 1 Liter (34 oz) Insulation: Insulates hot beverages up to 12 hours and cold beverages up to 24 hours Stainless Steel design: Made of 18/8 food grade stainless steel and 100% stainless interior Vaccum Insulation: Temperature from outside <span class="a-text-italic"><span class="a-text-bold">does not</span> </span>change temperature on the inside of the bottle BPA FREE: No BPA, phthalates, lead, or other harmful substances Perfect for camping, hiking, the outdoors, and for everyday use! Durable due to its steel design Safe: BPA free. reusable, and recyclable with non-toxic food grade powder coating Does not retain or impart flavors ensuring fresh and clean taste Great for every hot or cold liquid including tea, coffee, andwater