Aer de Aer Carry On is meticulously designed to maximize space and minimize weight using a 100% polycarbonate frame (the stuff they use in cars). Includes built in TSA combination lock, 360-degree frame-injected spinner wheels, Top and side easy grab handles. Exterior shell made of 100% Polycarbonate, Extremely light, just 6 lbs. Maximum capacity Carry On approved size allowed by all major airlines. 100% anodized aluminum telescoping handle. Interior compression straps keep contents snug, Interior secluded section ideal for laundry.