I bought this bottle and its 1 liter cousin as a result of the recent BPA scare. I'm not one for alarmism, but better safe than sorry. The wide mouth is smaller than a Nalgene's wide mouth, bigger than a Sigg's; perfect sizing, great for cramming ice cubes in and makes cleaning easy. I have the aluminum finish which scratches more readily than the painted variety (my 1L is painted), also the Laken logo is starting to scratch off of the aluminum. Not a serious gripe, just information. The water never tastes like you're drinking from a pool and the bottles are durable (I wouldn't hammer any tent stakes in with 'em or drop them down a cliff face, though) I'm extremely satisfied with these bottles, which are kind of hard to find. So buy them, dig?