The Corkcicle Classic 25oz Canteen will help you ditch the cooler and keep the cool. Enjoy your favorite cold or hot beverage, anytime, anywhere. Crafted from stainless steel with proprietary triple insulation. Patented easy-grip flat sides. No-slip bottom. Keeps drinks ice cold for up to 25 hours or hot for up to 12 without freezing or sweating. Cold even longer for drinks containing ice. With 750mL capacity, this size Canteen was specially designed to fit a full bottle of wine.