robs ss
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- Aug 16, 2016
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No moving parts with the bandana - it's just some kind of gel crystals encapsulated in the long sock.Is there a difference between these and a wet bandana?.
The crystals go soft when wet.
I think it works on it sucking the latent heat of evaporation (4.2kJ/kg.K if I remember) from your skin.
Cheers