Great Boot
My Acadia's are 400g GTX Size 12 D. By brannock I am a 12.5 B. I wear a 13D in my Danner Raptors, Danner Mountain 600's, and Danner Arctic 600's. The 600's fit perfect, the Raptors have lots of play in the toe box but it's perfect for thick socks and adding a superfeet insert. All great boots. The Acadia's, true to website run long and narrow. These fit me perfect if not a little snug on width. IF you run wider than a B on brannock, get the EE. If I had to do over I'd go for a wider toe box just so I could wedge in a full footbed insert. But the airthotic alone is nice. Warmth, if you are moving around a lot, 200g or 400g of insulation will warm up nicely. If you are just sitting or just standing around. Look for a boot with 600g to 1200g of insulation ie the canadian, trophy, alsea, vital or powder horn's or lookouts if you want to stay with a black boot.