Try Googling "OPEN LUGGAGE PEN" and watch Youtube how baggage handlers can break into your zippered bags with a simple pen or awl. Shocking. I am trying to refund two Samsonite zippered bags but Ebags.com and Samsonite.com won't do so. Now I have to write to my Amex card, BBB, and Consumer Protection to get satisfaction. Don't buy any more zippered bags unless they are strong like Eagle Creek's duffel bags but not all EC bags have this strong zipper. You could buy Lewis N. Clark Tsa Lockdown Triple Security Cable Lock sold here at Amazon.com to make it impossible for theives to rezipper your bag after breaking in. Just loop the handle and the zippers together. Go to your luggage store with an awl and test any zippered bag you are thinking of buying. Watch out for Bangkok airports. They stole from me twice.