Our 18-litre Gluon is made for extra space or as a standalone carry-on. A streamlined backpack with an understated look. handy compartments. and stashable straps. it's a travellers' dream. Compatible with our entire Hybrid Trolley range. attach the Gluon to your trolley's front or top and speed through the airport . When you've reached your destination and no longer need a big suitcase. pack up your Gluon and head out the door. It's perfect for city sightseeing or a short hike to stretch your legs.