Stainless Steel Thermos 17 Oz. Vacuum Insulated Steel - Keeps Drinks Hot or Cold for 12 Hours. Travel Mug, Tumbler or Water Bottle. Premium Stainless Steel colored Vacuum Flask 17oz Perfect for any event or adventure camping, on road trips, hiking, cycling, golfing, shopping VACUUM INSULATED - The Simple Modern water bottle is double wall vacuum insulated, keeping drinks cold for up to 24 hours. This bottle will never sweat. POWDER COATED - The exterior is powder coated for a colorful and rugged finish. PREMIUM 18/8 STAINLESS STEEL - These bottles are made from the highest quality materials, making them durable and functional. The lid is stainless steel, it won't crack like plastic lids. LIFETIME GUARANTEE - We stand by our quality and want you to love this bottle. It performs up to or better than all other Thermos or any other brand of travel mug.