Blade closed
My old knife was either stolen or lost a little while back, so it was time to pick up a new blade. This is the type of knife that I have found, from my own personal experience, is good to travel with. Here are the reasons that this is a good travel knife:
1) Cheap. Can be easily replaced if stolen or confiscated by police, security, etc. (This knife cost me about $12 from Ace Hardware)
2) Medium-sized blade...not too big, not too small. Good for many different purposes, such as chopping food, carving wood, cutting coconuts, and also as a weapon.
3) Lightweight/flat. Not too heavy or bulky to carry in pocket.
4) Buckle clip. In case you prefer to carry it on the outside of your clothing.
The only thing I can think of that would make this knife better, was if it was a switchblade (blade that flips open). This would make it a better knife for self-defense if your life was ever threatened.