Make lunchtimes magical with Harry Potter inspired lunchboxes and drink bottles, perfect for your favourite feast... because casting spells is hungry work! Insulating super powers indeed! The triple layer insulation in our larger bottle size will help keep liquids cool 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.