The unique front-access hatch design securely stores a 15-inch laptop, tablet, and documents, eliminating the awkwardness of opening the main case and exposing your belongings in public.The high-strength aluminum frame utilizes a sturdy aircraft-grade aluminum alloy frame instead of traditional zippers, effectively preventing theft and explosions. It also provides a stronger seal and comprehensive protection for your valuables.The ABS+PC composite material combines the toughness (drop resistance) of ABS with the lightness (pressure resistance) of PC, achieving a perfect balance of lightweight and high strength.