Airline Approved Personal Item Backpack: Avoid extra luggage fees! Designed at 18”H x 13.5”L x 8”W, this MATEIN Personal Item Travel Backpack meets most airlines personal item size requirement, and can be placed in the overhead luggage compartment and under seat for airlines, suitable for Spirit, Frontier, Easy Jet, Jet Blue, and other airlines. This carry on backpack for airplanes features a TSA-friendly 90-180° opening design lets you breeze through security checks and keep other items tidy | Spacious & Organized: Everything in its place! This MATEIN 40L travel backpack stay organized with 4 main compartments, the travel backpack carry on's main compartment with double zippers has enough storage room to store like a suitcase, fits up to 3-4 days trip. The separate laptop compartment offers enhanced padding to protect your 17" laptop. The front compartment has many pockets to keep your belongings organized. The Secure hidden pocket design can protect your passport, wallet & valuables | Versatile & Convenient: The shoe compartment at the bottom fits sizes 10-12, keeping footwear separate and odors at bay with breathable venting holes, while doubling as a versatile toiletry or accessory bag. This carry on backpack for airplanes ensures essentials stay neat, accessible, and travel-ready—perfect for business trips or adventures | Practical & Comfortable: Crafted from water-repellent, high-density polyester with sturdy metal zippers, this travel backpack for women ensures long-lasting protection. Secure your valuables with lockable metal zippers in the laptop compartment (bring your own lock). Enjoy airflow back design, multi-panel padding, and breathable, adjustable straps for stress-free carrying. Features padded handles, a luggage strap, and a side mesh pocket for water bottles or umbrellas—Travel with comfort and ease | Perfect Travel Companion：Whether for work or travel, daily or commuting usage, short weekend trip or spontaneous adventures, our tsa backpack carry on is the perfect companion! From airline friendly carry on to lightweight hiking gear, this backpack luggage for travel has you covered. A great gifts choice for your husband, families, friends, travelers, adventurers, and anyone on the go. This item is not intended for use by 12 years old and under