So versatile and durable! This Asobu Le Baton bottle is both double wall and vacuum insulated. It keeps drinks cold for up to 24 hours and hot for up to 8 hours. It will become your best friend and companion - and it's so sleek! Price includes custom engraving. Engraving will be no wider than 1.5 inches. Include in notes what you'd like to have engraved or firstname.lastname@example.org if you wish to have a specific design/logo engraved.