b.box Insulated Drink Bottle is triple walled stainless steel and copper, which helps keep liquids cold for up to 15 hours and warm for up to 8 hours. The front press button opening can be used with one hand to help with those big schoolyard thirsts and the integrated carry handle means it's always on hand. The easy drinking silicone straw offers free flow drinking and once done, click the lid back in place for leak free schoolbags