I had Lake MX237-wide for a few years, and it was time to replace them after a rough season. So I did not hesitate and ordered the next iteration of the shoes, assuming not much has changed. But something did. The shoe itself got better, the toe and heal additions, and I like the grip of Lycra heel. But right after opening the box it. was clear that those shoes are much wider than the ones I had. I tried them on, and my feet were just bouncing inside of a toe box. Not good. Then I measured the shoe. The carbon fiber sole is the same width, but the leather part is wider than the original by 10mm, which is a lot! I have wide feet, wearing 2E New Balance, but those are like 4E. That is even without taking into account that the leather will stretch.
These are the widest shoes I have ever worn. I even used the Lake website and measured my feet and these were in the range. But I have to cinch them pretty tightly to minimize the heel lift. Thicker socks help, also. I will use them in Winter more with heavy socks and somewhat less aggressive riding. They are very comfortable, well-made, and adjustable with the dual BOAs. You may have to grind out some of the sole material around your cleat to make entry easier for SPD. The channel is very narrow and hard to align. I like them, but they are not for racing because they are heavy and the fit is loose. Get standard or normal wide sizes for that.
Finally found a shoe that fits my foot. (size 46 wide) I'm 6'-2" 180 lbs.
A real wide fit with the cut of this shoe and loose over the top of my foot so no more Hot foot on the outer right edge and no more numb toes.
Managed to get these on sale so ever better value but most importantly can ride without pain.
It was time to get new MTB shoes and I'd recently had a bad experience with a road shoe being way too narrow. I did all the online measuring from Lake and used their informative breakdown of which shoe last works best with foot measurements. These were dead on. Very pleased.