I'm guessing you mean you sold your daily tokens through Regenerative Gel...?
The coats are not tradeable.
They are not tradeable, but one item that can be acquired with them, Regenerative Gel, although not tradeable can be sold in a sense by aiding other players in crafting the tradeable upgraded EMT 2350, 2600
Example
Also, grats to OP, I'm nearly at 4k and I've still got a while to go but I can't wait to be done with my grind for the coat.