These are authentic La Canadienne winter boots with a lug traction sole and warm lining inside. Elastic gusseted section on the back of the calf make them comfortable for different calf sizes. Laid flat the calf is 7 inches across. The shaft is 12 inches from the bottom of the boot very beautiful with lots and lots of life left in them for someone to enjoy. Gorgeous boots. LaCandienne makes lifetime footwear.