Merrell Vapor Glove 6 Leather Trail Running Shoes Merrell's leadership in the barefoot category continues with the Vapor Glove 6 Leather. These are the most minimal shoes Merrell creates, featuring a Vibram EcoStep outsole that wraps the foot to maximize grip and connection and a 100% leather upper for an everyday style. Leather Upper The Merrell Vapour Glove 6 has been constructed using a leather upper, a high-quality leather you can get. This luxurious, soft, supple upper is incredibly comfortable, durable and breathable, perfect for any adventures you take them on. A lining made with 100% recycled mesh allows for temperature and moisture control by allowing heat and moisture to escape, and move to the outer of the shoe - keeping your feet feeling fresh and breezy. Merrell Barefoot 2 construction is designed to keep the foot in a natural position, with zero drop, to encourage natural running form. By hitting the ground with your forefoot, rather than your heel, your speed will .