In this video I put the Asvine V800 through a real-world “flight test” the way a lot of us actually travel: no babying it, no special precautions, and definitely no elaborate ziplock-and-paper-towel ritual. I loaded it up with ink, tossed it in my bag, and got on a plane to see what would happen when cabin pressure does its thing. The big question was simple: would it burp, leak, or turn my bag into an inky crime scene? The whole point here is practicality. I’m not trying to simulate a lab environment—I’m trying to answer the question you’re probably Googling: “Can I fly with this fountain pen without wrecking everything I own?” I also point you to my full Asvine V800 review if you want the deeper dive on the pen itself. But for this one, it’s all about travel behavior: did it leak, did it make a mess, and is it the kind of pen I’d actually trust in the air based on what happened on this trip.