The bare SB base layer is nice. I have 2 sets. The Bare SB mid layer is very warm, stretchy but bulky. I spent a 3 hour dive in a 70 degree water in a flooded dry suit and didn't figure out it had flooded until I was walking out of the water, was just a bit chilly. But I can't perform a valve drill in them. If you get the SB mid layer ensure you are measured in them. And I will stress once again that it's worth paying more and being inconvienved to get someone who knows how to measure you for the drysuit you are buying. Trilam suits do not stretch, if it's a little too small it can have drastic effects on your range of motion.