Meet Aurora: Our new, mesmerizing, gloss finish with brilliant bands of color that resemble the Northern Lights. Each Canteen and Tumbler in this collection is hand-marbled and completely unique.ÊCrafted from stainless steel with proprietary triple insulation, this vacuum-sealed wonder cup just doesnÕt quit. It keeps your beverages cold for 9 hours and hot for 3. Stays cold even longer with drinks containing ice Ñ even out in the sun. Slip-proof, silicone bottom. Easy-grip sides. Sliding, spill resistant lid. Includes 1 Tumbler 1 Tumbler Lid