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Old 04-06-2012, 06:19 PM   #50
retlod
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Quote:
Originally Posted by Say Chi Sin Lo View Post
But the Aero 12-pack has two insulated compartments, an insulated water-bottle holder (very useful!).
"Insulated" compartments lined with foil are a sham. Foil would reflect radiative heat, but in order for that to work, it'd have to be on the outside of the bag. The only way bags can insulate is with thicker walls that trap more air. That would cut down on conductive heat transfer in the same way that double pane windows insulate better than single and down jackets are warmer than fleeces. Plus I never used the drink holder. It's only big enough for two 20oz bottles. In the summer, I take a cooler full of ice/water and about 64oz of drinks.
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