Foot in boot. Coloured X-ray of a man's foot seen in side view, wearing a Doc Marten boot. The boot has a steel cap at the toes. Bones and soft tissues of the lower leg and foot are visible. The ankle (centre left) links the leg to the foot. The lower leg bones are the tibia and fibula. The foot comprises many bones, including the calcaneus (heel bone), several tarsal bones, five metatarsals, culminating in the phalanges bones of the toes. Doc Marten's are an English brand of boot and shoe.