On the right is the M11 / W12 boot from the previous post. On the left is a M12 / W13 boot, just received. The length is the same but it’s still a bit narrower. The sidewall is thinner, not great for cold climates.
The top edge of the M11 / W12 boot cut into my right shin, chafing the skin away, even with a tall sock. Had to fold the rim down to get it to heal.
These boots were a favorite but there are probably better options on the market.