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This smart active living flask bottle maintain liquid heating above 42 ° C for 6 hours and liquids below 10 ° C for 5 hours. This is longer than other vacuum bottles. Suitable for easy travel, outdoor sports, office, beach, school, picnic, hot yoga, hiking, camping, cycling, running, walking, gym, fitness, etc.
(After 24 hours in water at 100 ° C, the temperature is maintained at about 40 ° C)