A shining and flashy way to share your brand! Made of 18/8 SS liner with copper coating, this 20 oz. bottle is anti-corrosion, anti-rust and durable usage. Vacuum insulation design keeps drinks hot for 12 hours and cold for 24 hours. Powder coating design is sure to get the attention of your guests. Screw-on cap avoids leaks or spillage effectively. Suitable for hiking, camping, and traveling. BPA FREE, FDA certified