Quote Originally Posted by Veronica View Post
No, the classroom temp is kept at 78. It keeps it cold longer in the classroom than the Polars do though. I'm waiting for my Polars to die so I can justify buying more. I have a whole cupboard full of Polars though.

I haven't tested it on the bike, so can't give numbers there. It's the bottle I leave in the car cooler so I have cold water AFTER the ride.

Veronica
Well...I have a Podium Ice bottle and HAVE tested it on the bike in 90+ degree temps...guess what? It doesn't work. No big surprise there. I had it filled to the rim with ice and then topped it off with plain water. Within 30 minutes, the ice was completely melted and within 1 hour, the water was unrefreshingly warm. But it's the best of all the bottles I own, so I'll continue to use it until something better comes along. I've also tried freezing it overnight. This worked only slightly better, but the temps weren't in the 90's when I tried it that way. I'll freeze it for my Saturday morning ride and see how long it lasts.