The Frameless? design eliminates the need for a conventional framed structure, replacing it with twin molded EVA shells. The resulting ultra-light luggage combines a highly protective environment for your belongings with more available packing space. Unique expansion section adds up to 25% additional capacity when needed Full lined interior with packing divider and organizer pockets Soft rubber top and side handles for extra comfort #10 interlocking zip pullers on main compartment 4-Color front panel label with 5 Year Guarantee Add-A-Bag straps on all sizes Stainless Steel ball bearing wheels resist salt corrosion Molded corners eliminate the need for frame giving added protection and strength