The GEN_5 365 backpack is your new essential pack. Meant to be used 365 days a year with its very convertible design. With an Airspace™ ballistic 600D shell, durable HF welding construction, and a lifetime warranty; We are sure this pack will be superior on all your missions on earth and beyond. Cinch down your side straps on the pack for your daily commuter, fill the full 30L for your long weekend, or pack in the full 45L conversion for wherever your mission may take you. Enjoy the free laptop sleeve. Stay extra organized with our Locker insert, and keep your favorite beverages and snacks chilled with our cooler insert. May your missions be more enjoyable! AIRSPACE™ BALLISTIC 600D SHELL, (THERMO-BONDED/RIP STOP/FIBER INFUSED), DURABLE HF WELDING CONSTRUCTION, and HIGH DENSITY NYLON WEBBING. Check out all the features HERE!