High Sierra Expandable Wheeled Upright Our special built-in, EVA foam structure helps maintain the bag's form while minimizing weight. Main compartment, with book style opening, expands 2.5" for additional capacity. Interior features clothing hold-down straps, shoe pockets and zippered mesh pockets. Zippered divider panel, between front and back compartments, can be rolled up and secured to create one large compartment. Large chute-style pocket holds additional gear.