MLB Denco 21-Inch Carry On Luggage 100% Ballistic Nylon Imported Polycarbonite frame construction and dual-tempered aluminum handles Domestic Airline / Overhead Compartment Compatible Size with padded top and side carry handles that provides comfort when lifting Protected and recessed Velocity in-line skate wheels with Durable corner guards that protect against abrasion Fully lined interior Durable weather resistant light weight Ballistic Nylon with a Hi-Definition Embroidery Main compartment expands 2inches for additional storage capacity , with book-style opening that has a large mesh pocket and interior clothing hold-down straps Recessed, telescoping lightweight aluminum handle system with locking mechanism along with upper and lower front pockets that hold travel necessities