Grey/Black Nike Vapormax with locking shoe strings. These are in excellent condition 9.95/10. If you’re one of those people who have never tried on a pair, you’ll want more of them as they are of great quality and comfort. Well taken care of and hardly worn. How they work: To put on… Simply place your feet in the corresponding shoe and pull the locking strap on the back to your desired tightness. To take off… Pull the release strap on the tongue to unlock.