I love love love my DHs bottle. Klean Kanteen. It wasn't cheap, but is awesome. It was designed to fit in a bikes bottle holder and it fits into cup holders in cars (which none of the Kathmandu or anaconda ones do). It's not a litre, it's 800 mls. It's got a silicone top which never gets yucky and there are a variety of tops available. We have the sports. It's aluminium, so it's easy to keep clean.