Burton Wheelie Cargo, True Black 100% Polyester Imported IXION Wheel System EVA/TPU Back Panels: Lighter, Faster, Stronger Volume-Enhancing CRAM Zones IXION Skate Wheel System Hideaway SnakeStack External Backpack Attachment Volume-Enhancing Stretch Cram Zones Lockable, Contoured Zipper Pulls Fit TSA Locks