Material: Water-resistant polyester or high-grade nylon fabric with a distinct diamond-quilted pattern across the front pockets.Storage Structure: Dual front zippered compartments for quick access, plus a spacious main compartment equipped with a protective sleeve for laptops up to 15.6 inches.Security & Utility: Includes a built-in side TSA combination lock to secure the zippers, along with integrated USB and earphone passthrough ports on the side panel.Comfort: Features thick, padded, and adjustable mesh shoulder straps paired with a heavily cushioned back panel to ease heavy load