I tried the Gatorade overtime stainless steel bottle for almost a week now and i am surprised how good it is. It is made from durable materials TPE from the outside giving it a durable rugged feel and smooth texture and from the inside it is made from stainless steel and it's double insulated. Now testing for almost a week i can say it's very durable i dropped it once this week but by accident and there's no dents no damage or spillage. It is spill proof and leak proof I can't make this up i turned it upside down and shake vigorously and nothing leaks that's very well designed and premium built. I also tested for 10 hours how my cold drink will last being in a room temperature area i can say it was still very cold so the claim of 24 hours cold must be real. Overall this is a very good bottle i would recommend this to anyone It's very premium and easy to clean. Also comes with a 3 year warranty.