VERY COOL HOT WATER FLASK: A vacuum-insulated stainless steel water bottle that will keep your beverage cold up to 54 hours and hot up to 8 hours thanks to its copper-coated double wall construction. Couldn't get much cooler, literally! NON SPILL WATER BOTTLE: This insulated bottle with a large handle is fully spillproof, even with carbonated beverages. Thanks to its new ONE lid: Carry, open, drink, close, and repeat only with one hand. Perfect for refreshing adventures. DURABLE MATERIAL: The SIGG Shield ONE Therm is an insulated flask made of 90% post-consumer-recycling stainless steel, a durable alternative. *Calculation of a 0.5 L bottle. SAFE DRINKING: All materials used to design SIGG water bottles are free of harmful pollutants, such as oestrogenic substances and phthalates. Enjoy every sip out of this BPA free water bottle, ensuring a neutral smell and taste. SWISS DESIGN: SIGG bottles up over 110 years of experience designing the best. Excellence and innovation shine through this metal insulated water bottle meticulously engineered from the combination of love for stainless steel and design.