I've never seen those shoes. What shoes are those?
I've never seen those shoes. What shoes are those?
I believe they are the Nike Streak 6's, a slightly updated prototype of the ones he wore in London. I think maybe Nike will be going back to make some more updates after the inner sole fiasco!
I've had problems with Nike shoes doing this, including the Lunar Elite, Lunar Trainer, and Flyknit racer.
Bad combinations of either rain or sweat would cause the insole to grip my sock or bare foot, move with it's inertia to the front of the shoe (if I was going downhill or braking for a turn), and then bunch up.
It got so bad, in so many shoes, I don't wear nikes anymore. I even tried using a cereal box to blue to the bottoms to give them more rigidity, which helped, but wasn't durable.