Geox Trekkyup insulated ankle boots in dark green are designed for winter days. The upper combines polyurethane, woven polyester and synthetic rubber, the inside is made of polyester fur. Respira™ and Amphibiox™ technologies promote breathability and help protect against water. The reinforced toe and heel protect the foot during outdoor games. The boots fasten with a Velcro fastener and elastic laces and have a removable insole.