Full-grain leather and ecoTWX material upper provides increased durability; Eco TWX material is a durable, eco-friendly material made from recycled water bottles; Every pair of shoes made from Eco TWX material uses up to 13 recycled water bottles; In addition to the positive impact of removing plastic water bottles from the environment, for every pair purchased, Twisted X will plant a tree and help repopulate troubled tree populations in the United States; Removable, moisture-wicking, antibacterial and machine washable SD footbed; Slip resistant molded rubber outsole provides added durability and tractio; Toe Shape: D Toe; Width: M; Grey/Light Grey Color