Does anyone know how to activate the crystals in the PEI water boots? I soak them in ice water but they don't remain cold.

Hi Charlotte, on their website they advice to activate crystals by soaking in cold water for approximately 24 hours before first use, soak in cold water for approximately 60 minutes before use each time after first use, anatomic wrapping shape makes them easy to
put on and take off and using for approximately 20 minute periods each session!

I think that if your not sure you should call them! :)
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