Interesting.
What would be better, form fitting under armour, or loose under armour?
There are so many choices for undergarments, any recommendations?
Both for cold and warm diving. I'm typically diving 37-55F water, however I'll be diving in warmer this July-November as I'll be abroad.
Also, what do you wear inside of your rock boots? Would some merino wool socks suffice for cold water, or would something warmer be needed?
I use the form fitting Under Armor, less stuff to wrinkle, pinch & bind. When I wear shorts, I tend to get sores from the squeeze & the movement of the wrinkled material over my skin behind my knees.
For the 37- 55 degree waters you'll probably want 400gm or more undies, depending on your cold tolerance..
I have the socks on my drysuit & wear rock boots over them. Inside the socks, I wear 1 pair of 3mm neoprene socks for warm water 68- on up & 2 pairs for cold water. Feet never get cold, however, you do need to take them off fromm time to time to let your feet breathe.