Outer shell is textured with embossed finish for extreme scratch resistance. 20″ meets current carry-on requirements for any airlines and fits into most overhead compartments. 20″ Carry-On: 20″ x 13.4″ x (8+2)”; 6.8 LBS 28″ Spinner: 28″ x 18.5″ x (12+2)”; 9.4 LBS