We've chosen to stock Klean Kanteen for our rigid stainless steel bottles after searching for the best bottles on the market to use ourselves. The thousands of reviews on Amazon don't lie. These bottles are made from premium food grade stainless steel and provide you with what you would expect, but don't often get with other metal water bottles: clean water and no taste of metal or plastic or anything other than water.
TRAVEL TIP: Take an empty bottle for inflight travel and fill it after going through security (you can't take liquids on board international flights). Most airlines rarely provide enough water to combat the de-hydration caused by strong inflight airconditioning and cabin pressure.