Geox Trekkyup children's ankle boots in dark green are insulated, waterproof and breathable. The upper combines polyurethane, woven polyester and synthetic rubber, the inside has a polyester fur lining. The reinforced toe and heel protect when playing outside. The Velcro and elastic laces make it easy to put on, and the removable insole supports easy maintenance. Respira™ and Amphibiox™ technologies help wick away moisture and prevent water penetration.