Enjoy the warm tones of Corkcicle's Copper Collection while sipping from 16 or 25 ounce Canteens. Corkcicle's Canteens are crafted from stainless steel with proprietary triple insulation. They keep drinks cold for up to 25 hours or hot for up to 12 hours. All Canteens have slip-proof silicone bottoms and easy grip sides. Enjoy your favourite cold or hot beverage anytime, anywhere with Corkcicle!