Made of a durable yet lightweight polycarbonate composite Durable scuff-resistant, diamond-emboss textured surface Flush mounted built-in TSA combination lock Features a fully-lined interior with zippered divider, buckled compression straps and zippered pockets Zipper-released expansion system allows for an extra 20% in packing capacity Gel-cushioned top and side handles Lightweight aluminum push-button telescopic handle system with multi-stage locking heights 360° Dual spinner wheels allow for effortless motion in different terrains