Geox Trekkyup insulated ankle boots in dark green are designed for winter weather. The upper combines polyurethane, woven polyester and synthetic rubber, and the inside is made of polyester fur lining. The waterproof and breathable Amphibiox™ membrane and Respira™ technology help keep feet dry and comfortable. The reinforced toe and heel provide protection when playing outside. The Velcro closure and elastic laces make it easy to put on; the removable insole is easy to maintain.