Kinda leaky
I bought this water bottle after going through several $5 sport-top water bottles that leak all over me when I take a drink. I thought the Sigg would be different - but it's not. Better, yes. Leak-free, no.

But it is pretty. And I like that it's recyclable and not made of plastic. I would probably recommend a Sigg without the sport-top (I'm considering buying a regular top for mine).

Love this pretty butterfly bottle!!!
I love my new Sigg sport top bottle. It is great to go to the gym with and even drink around the house. It is beautiful and vibrant...much better than a standard plastic watter bottle. Just be warned if you put ice in it, it gets pretty cold and sweaty. My ice maker makes skinny ice that fits. I bought a strap for it to carry when I walk which is a great addition if you can find one in stock( I had to get one off ebay). I am a new Sigg fan and highly recommend using one of these instead of plastic.

texasmama
I jumped on the "no plastics" bandwagon a few months ago. I bought my two girls Siggs bottles for lunch, park, etc... The bottles are what you would expect. However, my youngest (1 year) chewed the heck out of the PLASTIC mouth piece. Had to replace that. Secondly, they are a PAIN in the butt to clean. If you are like me...occasionally the bottle gets left in the car overnight. They grow mold very quickly and have hard to reach part to clean. I soaked them, boiled them, scrubbed them and finally scraped them clean with a long wood chopstick. So... good product, but buy the cleaner brush (havent tried it) or get ready for some major cleaning sessions.

Sigg bottles are terrific.
I love my Sigg bottle (I have two now). They are a fantastic alternative to disposable plastic bottles. The sport top, however, has it's limitations. If you don't wear lipstick, it's wonderful. But if you have lipstick or even lip balm on, it's better just to unscrew the lid and drink that way, otherwise, it gets all over. Because it is leak-proof, you have to put your lips to the top and "push" to get the water out and that pushing motion causes anything on the lips to be on the sport top, and even back on your face, outside the lip area. That is the only caveat that I can think of. Highly, Highly recommend this product!

good bottle, confusing caps
I got the Sigg bottle because our office went disposables-free, and I'm sensitive enough that I can taste the metal in the steel drinking bottles that were the company recommended alternative. The liner and cap do appear to be taste-neutral to me. The painted aluminum finish feels fine against the skin and has no metallic or paint taste or smell. And, as an artist, it's an extra bonus to have the coolest looking drinking bottle in the building.

Anyone considering the butterfly design might also appreciate knowing that its 'soft blue' is as bright purple in person as it looks onscreen. That's actually what I was hoping for, so no complaints from me on that account.

I couldn't find a concrete explanation anywhere about the different types of tops on Sigg bottles, so some other customers might be confused as well...

The loop/ring top is pretty self-explanatory, but if you're planning to drink directly from the bottle rather than pour from it, it might help to know that although the opening has nicely smooth rounded edges, when drinking directly from it you can feel the seam between the outer shell and liner. It's not rough or dangerous, but not everyone would be entirely comfortable with the feel.

The regular drinking top has a pop-up spout, with 2 settings; open and closed. The cover is connected by a plastic loop around the neck of the bottle, is removable and can move around when open.

The 'active sport' cap twists from a closed/locked position to a leak-proof open position. That means you need to press down on the cap to drink, but won't accidentally pour water all over yourself if you carry it around open or knock it over on your desk. The push-down nozzle takes a bit of getting used to, since you either need to press it (pretty firmly) in against your mouth when drinking or hold it down with a finger. Once I got familiar with it though, it was pretty simple to hook a forefinger over the edge of the cap when holding the bottle by the neck, so I can drink or pour one-handed while pressing it down. The cover on the active sport is hinged, but can be removed if desired. It's supposedly mud-proof, but I - fortunately - haven't had a need to test that.

Both drinking caps can be taken apart for thourough cleaning, but don't come apart easily by accident.