The portable wine and champagne bottle insulator is made of double walled stainless steel and is vacuum insulated, so it keeps your wine, champagne, and sparkling water chilled for hours. Lightweight and easy to carry, you can enjoy your wine anywhere you go. Beautiful gift box included. The original wine chiller. The wine chiller top is adjustable so that it screws down all the way on shorter bottles and, on taller bottles, it screws down far enough to secure the bottle.