I'm a long-ish distance runner, and these were certainly an interesting experience for my feet! You slide them on and, after a few minutes, feel a tingling, mildly burning (in a good way) sensation.
I mean, does this not give off "I am an intellectual, but I also love my aesthetics" energy? www.amazon.com ... Get it from Amazon for $34.97+ (available in five colors). 24. A pretty pastel mug ...