Camille wrote a review of CamelBak Podium Chill Insulated Water Bottle - 21oz on September 4, 2013
Familiarity: I've used it several times
I love the lightweight flexible material of bottle, and of course that it is BPA Free. The lid is great, easy to sip through and really doesn't leak while riding even when I don't completely twist the nozzle shut - another good thing that improves ease of access. Fits in my blackburn carbon bottle holders perfectly.