The Subterranean 2 carryon is a perfect bag for running through airports. The wheels are amazingly smooth, the handle adjust effortlessly on the fly and the zippers still closed on an overstuffed bag. The back is solid on the back and the front is like a semi hard shell, giving just enough flex to overstuff but solid in structure. The inside has a nice mesh zipper area and great tie downs on the open side. Comes with a divider bag which is vey useful. Totally worth the money!
If you’re looking for a versatile, well-built backpack that can handle daily work use and travel without compromise, the Subterra 2 is absolutely worth it. Highly recommended.