DOUBLE WALLED VACUUM INSULATED: Our high quality reusable vacuum insulated water bottles work great as a thermos, keeping your drinks cold up to 8 hours and hot up to 6 hours. Our double wall construction is specially designed to prevent condensation from forming on the outside of the bottle. ECO-FRIENDLY BPA FREE - Eco-friendly kids water bottles are ideal for school or home. Designed to be safe for children, our water bottles are reusable and 100% free of BPA and other harmful additives. LIGHTWEIGHT & NO SWEAT WATER BOTTLE: The design of our water bottle makes it perfect to take anywhere, whether to your office, school, gym, yoga class, or while you are out for any outdoor activities such as biking, running, hiking, backpacking, or camping. 18/8 FOOD GRADE STAINLESS STEEL: Each flask is made of high quality food grade 18/8 stainless steel (304 stainless steel). Unlike many other low quality steel, aluminum, or plastic bottles, our 18/8 stainless steel bottles will not leach out any metal taste into your beverage and will leave your water odor free. The cantines are completely safe to drink and non toxic. POWDER COATED & DURABLE FINISH: Our stylish and durable powder coating gives your bottle extra protection from chipping and scratches. Each thermal bottle is not only durable, but also very chic and classy! Inspirational and unique designs on the bottles make them perfectly suited for women and men, adults, teens and kids. They are also a great gift idea!