Gator Waders

https://www.gatorwaders.com/pages/size-chart-mens-shield-series

Does their sizing run big, small or right on? I'm a size 11 boot and they offer a 11-12.5 shoe size in their waders. The next size down is 9-10.5. Should I stick to the larger size and wear thick socks?

I typically wear size 11.5 and went with the 12s, feels like a 12.25. Wool socks will definitely fill up that space. I know the 10 would of been way too small for me.

I wear a 12. Mine fit perfect and I usually wear wool socks, sometimes with normal athletic socks under the woolies.