No chemicals leaching into your water. This is a solid bottle! My only complaint is that I have been unable to find great bottle top options. I was unhappy with the Bottle Top Accessory by Sigg. 4 stars

It sparks great eco conversions whenever I pull it out a take a swig out of my Sigg... 5 stars

You can get this bottle for $24.95 at Whole Foods, so why pay almost twice as much?

I have wanted a Sigg bottle for a long time and was happy to find it at Whole Foods. It's a good product and would have given it 5 stars, but the opening at the top is hard to fit ice in and it doesn't come with a sport lid for easy access. Having to unscrew the top every time is a pain. But I will probably pay the extra and buy the top separately. 4 stars