Review on Durable Stainless Steel Flask in Variety of Vibrant Colors by Marcel Robinson

Nice bottle. The cap is flimsy and I could see someone easily breaking the hand attaching it to the bottle. RE: The bottle is discoloring its contents, I haven't had such a problem, but I wouldn't leave the liquid in something like that for more than a day either. This is not premium food grade stainless steel and you should not expect that kind of durability.