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Cool on Sub-Zeros. Very retro. I'd like to have this in a more modern frame, so I wouldn't be so hesitant to wear it.
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i have this on my sub zeros and its very very similar to cobalt so i dunno why the need for the different name.
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I have these on my Sub Zero's and it's an interesting crackle design much like Cobalt, Fuel or Gold X. The only difference is the color.