Corkcicle's Aurora Collection has a mesmerizing, gloss finish with brilliant bands of colour that resemble the Northern Lights. Each piece in this collection of canteens, tumblers, and stemless tumblers is hand-marbled and completely unique. Crafted from stainless steel with proprietary triple insulation, the canteens keep drinks cold for up to 25 hours or hot for up to 12 hours. All pieces have slip-proof silicone bottoms and easy grip sides. Enjoy your favourite cold or hot beverage anytime, anywhere with Corkcicle!