Sauce - can you please explain to me what's going on with the long sleeve shirt that you're wearing underneath, and how you're getting it to roll over your sleeves like that? Really cool.
It's just a thermal under a button-front. I roll the sleeves on the button-front as normal, and just pull up the sleeves on the thermal, which is banded at the wrists, so it stays where I put it, more or less. Nothing much to it!