Features of the Gregory Quadro Roller 22 Travel Pack Proprietary quadro spherical wheel system sets the standard in multi-directional rolling Ultra-durable handle and wheel housing components covered by gregory's Lifetime guarantee Reinforced lightweight composite construction strikes a calculated balance between weight savings and reliable gear protection Water-resistant textiles with reinforced abrasion zones and multiple lash points for additional gear carry Lightweight High-strength retractable locking handle with TPR coated comfort grip Activeshield compartment expands from zero to fifty percent of the overall bag capacity to provide vapor, dirt and odor resistant protection and separation of active and casual wear Dual external pockets with protective padding for quick-access to phone and toiletry kit in security line or additional organization when checked Interior mesh pockets for storage and organization of small Items Dual internal compression straps Custom easy-grip U-shape zipper pulls Lockable zipper sliders for peace of mind when you find yourself a little too far off the beaten path