I’m planning my first solo trip to Europe (Spain!) and I really don’t want to be dragging a rolling carry-on over cobblestone streets. So in this video, I put three carry-on travel backpacks head-to-head: the Cotopaxi Allpa 28L, the Cotopaxi Allpa 35L, and the super popular budget option from Amazon, the Taygeer travel backpack. I walk through my non-negotiables—comfort/weight distribution, clamshell opening (because I refuse to dig around like a raccoon), logical organization, and a water bottle holder because I already struggle hydrating as it is. Anti-theft zippers were also a big draw for Europe. Then I do real packing tests using my actual essentials from a 5-day winter California trip (bulky layers) and a summer Taiwan week (lighter clothes). The Allpa 28L is beautifully designed with usable compartments, but it got tight with my winter packing cubes and didn’t leave much room for extras. The Allpa 35L packed way more smoothly, felt comfortable, and the padded waist strap actually helped carry the weight—plus it gave me that “souvenir space” I know I’ll want. The Taygeer was comfy with great back padding and compression straps, but packing was more finicky (my cubes didn’t fit), so I see it more as a personal item than a one-bag solution.