After I had many travel locks over the years in my hand, I'll continue to Abus not over. The locks look valuable and nothing wobbles, unlike many cheaper manufacturers. The key act also stable and can be conveniently attaches to a keychain. Fortunately, are included on this set equal to 4 keys, making a handling traveling very flexible. Depending on a key hidden for emergencies with me and my travel partner and the other on the respective keys. All 3 have locks with a key to use the same lock cylinder, so it is possible all 3 locks.
As an additional security when traveling I would still recommend a Pacsafe Wrapsafe steel cable as a zipper is very easy to open with a pen. So you do it at least opportunist thieves super heavyweight.