My Dad is a cyclist, but I haven't really gotten into such, but he gave me a bunch of old bottles to take to the gym. I ended up liking "Polar Bottle" the most, I ordered more online If any of you fill the bottle with a little water the night before, then lean the bottle and freeze it (making a large, long lasting ice cube that will always float away from the spout) you'll like this one. It's lined in aluminium so the ice cube stays for ~5 hours... long after my work out is over. I take it to work with me. Still looking for one more to test the water with. Anyone have something snobby instead of "A gallon jug of arrowhead water I bought a long time ago"?