From Twisted X®, the Hooey Loper Sneakers feature: ecoTWX® material upper ecoTWX® material is a durable eco-friendly material made from 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 Padded tongue and interior lining for added comfort Removable, moisture-wicking, antibacterial and machine washable SD footbed Composite XD insole provides unrivaled support and stability Slip-resistant molded rubber outsole provides added durability and improved traction Imported.