Capped at the knee.
The upper of these boots are faux-suede. The calf is thin to move nicely with every step. The boot is 21" from the heel to the top of the boot so it ends right above your knee. You can also fold them if you like them lower. The calf width is ~13" with a little bit of stretch. There is a zipper on the inside.
Heel height: 2.25"