RiutBag X35 puts travel security and flexibility first. It uses a unique origami folding mechanism to change capacity when a traveller needs more or less space. Just one travel bag can be used in compact mode for the commute or expanded to maximum airline cabin allowance. It is built for the solo traveller, commuter and airline passenger. RiutBag X35 is secure by design: its zips are hidden against the wearer's back, so it is automatically secure every time it is used.