I wouldn't go with a Vision humidor for a travel kit. They don't always seal well. The tray is cedar lined MDF. Half the time the hygrometer is wrong. Also, the humidity pack doesn't last very long and is usually dead by the time you get it. There is also the previously mentioned velcro strap that is nigh on useless.
http://www.cigartoyz.com/_e/TRAVEL_H...ar_Humidor.htm
I highly recommend that one.