"I used to have a really bad, leaky water bottle. I had put up with it, but decided to get this as a replacement since more water would get on my shirt than in me. Made with "safe" plastic that doesn't give off a weird taste and since it has the bite valve, it makes it easier to drink water during cardio, since you can keep the bottle upright. Plus, squeezing it gives you a little more water. The little finger notch is good for grabbing it from cup holders. This is a good size for a gym bottle, but I prefer capacity for a travel bottle... it may be time to replace my lost nalgene."