Made of a lightweight polycarbonate composite with a brushed metal textureFeatures a fully-lined interior with zippered divider, buckled compressionstraps and zippered pockets Flush mounted built-in TSA combination lockZipper-released expansion system allows for an extra 20% in packing capacityGel-cushioned top and side handles Lightweight aluminum push-button telescopichandle system with multi-stage locking heights 360 spinner wheels allow foreffortless motion in different terrains