This CamelBak Podium Big Chill Water Bottle is available for $6.93 as an add-on item (reg. $15).  Currently, the only available colors for this price are Sprint Green, Pace Pink, and White/Purple.  This is by far the lowest price I’ve seen on these on Amazon.

• The 25 fl. oz. CamelBak Podium Big Chill Insulated Water Bottle uses double-walled construction to keep water cold long after you start pedaling
• Self-sealing Jet Valve cap delivers high water flow; drink with ease without spills and splatters
• Secure lockout on cap ensures leak-free transport and shaking and mixing of powdered drinks
• Made from a proprietary blend of BPA-free and BPS-free polypropylene with Hydro Guard, the Podium Chill lets you taste your drink, not your bottle
• CamelBak Got Your Bak Guarantee: If we build it, we’ll Bak it with our lifetime guarantee