Raptic Trek combines hard polycarbonate and anodized aluminum to form the best protective Apple AirPods case. A heavy-duty, machined aluminum bumper protects the perimeter of your device, and it is easy to slip on and take off. Raptic Trek includes an optional loop and carabiner for easy, on-the-go access to AirPods on backpacks and more. It is also wireless charging compatible, so you can charge your AirPods with Wireless Charging Case through Trek. For all AirPods, Trek keeps your lightning port easily accessible for wired charging.