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I dive a lot in cold water (-1 to 10°C) and I use 4th element xerotherm wrist warmers, which have the same function as tubes (but cannot be removed in case of glove rupture).
When water is +8°C, I use xerotherm G1 glove liners (these are great!) and below that heated gloves and vest from Santi.
I regurarly do dives of +90 minutes in that kind of temperatures without moving much.