The X25 is like a transformer but without embarrassing five films left in its wake, you can change from a slim laptop backpack to a large travel backpack that is carry-on compatible with suitcase style access - with a backwards design for security, all access points and zips lay pressed against your back, so no tea leaf fingers can access the bag without your knowing. The X25 converts from a slim and compact commute bag, 47cm x 35cm x 13cm (18.5inch x 13.77inch x 4inch), into an expanded 55cm x 35cm x 20 cm (21.65inch x 13.77inch x 7.87inch) size travel ba