You're wondering about the black
tape on the runner's calf.
It's duct tape.
Plain old duct tape.
The runner is recovering from a calf strain.
Wrapping the calf in duct tape allows him to run...
You're wondering about the shoes?
(or lack of shoes!)
I'm a barefoot runner.
Not always...but often.
And especially when I want to run
with minimal impact.
Barefoot running is a very gentle form of running.
Very easy on the knee.
(I have a bad knee.)
I'm not suggesting that you run without shoes.
But it sure works for me!