The Merrell Chameleon3 Stretch Training Running Shoe is designed for both stability on the trail and comfort on your foot. These Training Running Shoes slip right on so you can head right out, with a Friction Cordlock keeping them secure on your feet all day long. Features nubuck leathe, breathable mesh upper, neoprene 4-way stretch collar and tongue, air cushion and vibram Chameleon3 sole. These Merrell Chameleon3 Stretch Training Running Shoe weighes a mere 2 pounds 2 ounces. Sturdy, light and durable.