Bit noob question but I want to transfer what I have equipped to a different class and I just cannot figure out how to unequip my gear..

You have to equip a different item. Your char can’t be “naked of items unless it was just refilled or did the master quest.

Ah thanks, been years that I've played ladder slasher, much changed

Also when you are ready to transfer you go to the marketplace and far right tab let’s you transfer to other characters.

You can only transfer to characters that have been played (for example if you reroll a character but don’t assign it a class you can’t transfer items to it until it becomes a fighter, barbarian, etc…)