Now that winter is coming, and the air is getting cooler (and more importantly the water) I have decided that I am not done diving this year and am going to purchase a drysuit. I have read multiple reviews and done my fair share of research and will be purchasing the Pinnacle Freedom 2 Drysuit. My question is not about how good or bad this drysuit is, though if you have dove it, I welcome the comments. My question is regarding the sizing. Using this size chart I am guessing I would be placed in the "Medium" category. (I am 150lbs, 5'11", Waist=33", Chest=37"). My question is two-fold. Firstly; Because I will be diving in cold water (Northern Indiana's finest) and thus be wearing some heavy-duty undergarments will I need a bigger size Drysuit or when they determine their sizing do they include undergarments? Secondly; Along with the previous question, am I correct on guessing the size Medium, or should I go with the Medium/Large. Just as some additional detail I own a Pinnacle 7mm wetsuit that is Medium/Tall and fits me perfectly.