The Mr. Coffee Luster Hydration 2 pc Thermal and Hydration Bottle Set in Metallic Blue is insulated and vacuum sealed, making them the perfect pair for both hot and cold drinks. Carry your ice cold water in one bottle while you sip your piping-hot coffee from the other! This set comes with two stainless steel bottles, one stainless steel vacuum-sealed twist on cap, and one plastic vacuum sealed twist on cap equipped with carrying handle and mini metal carabiner. The vacuum sealed caps keep the drinks fresh in taste and the bottles maintain their temperature for hours. Perfect for hikes, long runs, camping trips, and even for a daily indoor 9 to 5 job.