Unique Bargains TSA Friendly Flight Approved Carry on 。Versatile. This 40-liter travel backpack meets airline carry-on dimensions for United, Delta, Southwest, JetBlue, Frontier, and Spirit—fits overhead bins and under seats. Engineered for travelers who need smart organization: padded 20-inch laptop compartment, dual front pockets, side storage, mesh dividers, and compression straps keep everything accessible. Adjustable chest and shoulder harnesses distribute weight evenly, reducing fatigue on long journeys. Reinforced top and side handles double as luggage straps to tether your pack to a rolling suitcase. Breathable padding on all contact points keeps you comfortable whether you\'re navigating an airport or hiking to your gate