Here's what other sites are saying:
You've heard about BPA, and you're thinking an aluminum water bottle would be a mighty fine idea. But you want one that'll fit in your bike cage and that'll be easy to drink out of. Grab the Laken 0.6L Hit Bottle. The wide mouth means you don't have to take a chisel to your ice cubes or use a funnel to get sport-drink powder in your Hit Bottle, and the bike cap makes hydrating simple and fast. This Laken bottles cylindrical shape fits in most bike cages.