The Siig water bottle is made out of aluminum. In order for aluminum to be safe to drink from, the inside needs to be coated with something, usually epoxy. So you are basically still drinking out of a plastic bottle! Also, if this bottle get's dented, the inside coating will crack without you knowing it and then aluminum is being leeched into your body.


I recommend the Klean Kanteen products instead. They are stainless steel which is totally safe and doesn't need to be coated with anything. 1 star

I was a die-hard Nalgene bottle user. I owned at least a dozen of them, and never went anywhere without one. Until recently. With the questions regarding the safety of the plastic they were made from and with recent articles discussing issues with the buildup of germs that are recorded in many of these type of containers, I decided to make a switch. I love the fact that these are made of metal, especially since I have cracked more than one plastic bottle by dropping it or accidentally cooking it in the dishwasher. Even the Nalgene bottles do not handle the heat of the dishwashers well, and I have had them begin to get the little spiderweb cracks. Anyway, the metal bottle is tough, light-weight, and is easy to haul around. The 1 liter size, in my opinion, is best suited for either home/office use or serious backpacking applications. A liter of water can get heavy lugging it around all day. The .6 liter is perfect for people on the go that want to reduce their use of plastic bottles, but do not want to get weighted down. The metal bottles do well in the dishwasher, even with the small opening. I put it in there to sterilize it after I have cleaned it with the tablets. I also soak all my bottles and caps in light bleach water at least once a month...it is important to keep them as clean as possible, since water bottles can grow so many creepy crawlies. For the people that have complained that the threads are too sharp to drink from, either they need to send them back because they are defective or look at the way they are drinking from them. If you are trying to suck the water out to the point your lips are pulled into the bottle and are hitting the threads, you are not drinking from them correctly...try less suction and more pouring the water into your mouth. Also, other reviewers said that mold grew on their caps...unless you are leaving the bottles with stagnant water or leaving the caps on when they are damp inside, you should not be growing mold. Mold has to have a warm, damp environment to grow. After you clean them, leave the cap off until they are bone dry and then do no tighten the cap all the way down. Better yet, leave the caps off the bottle when they are empty. If you are growing mold, it has nothing to do with plastic, rubber, or metal...it has to do with the conditions the bottles are being kept in.

Overall, these are great items, rugged, light-weight, and help reduce the amount of plastic going into our landfills...personal recommendation, I get the caps with the loop on top, they are so easy to attach to book bags and belt loops that way.... 5 stars

These bottles are very fashionable. They're light-weight and well made. I only have one complaint - drinking directly from the bottle is uncomfortable because of the sharp screw ridges. The ridges are inside the bottle where you might not think your lip would ever touch, but mine does just barely. I haven't cut my lip yet, but it's still unpleasant to feel those sharp ridges. I tried the Sport Top in order to avoid the ridges, but it doesn't work properly. Maybe I'll get used to the ridges eventually and not notice them anymore.

By the way, I docked two stars for the sharp ridges, and one more for the poor quality accessories that Sigg sells for these bottles (the useless Sport Top and a poorly-fitting insulated pouch), which were a waste of money. 2 stars

! WARNING ! ALL of our Sigg plastic water bottle caps have grown black mold even though cleaned regularly. Here in Florida plenty of hydration is needed as we live, work, and play on the Gulf coast. We purchased 4 beautiful aluminum Sigg water bottles about 6 months ago. All have been used only as water (both tap and filtered) containers. All have grown BLACK MOLD on the plastic bottle caps. The mold is NOT removed or prevented from growing when washed with the Sigg cleaning tablets. Washing with clean hot/warm water after use does NOT prevent mold growth. Other bottles we use (such as the Kleen Kanteen stainless steel) have had NO MOLD growth. 1 star

Need a metal water bottle without the flaws of the Sigg? Try the THERMOS 2465P STAINLESS STEEL HYDRATION BOTTLE here on Amazon. I found it to be perfect for my needs. 2 stars