Caribee x trek 28l hiking backpack description the all new x trek backpack from caribee is designed for outdoor adventures day treks and hikes ideal for a weekend trek in the countryside but equally at home in the city as a casual daypack if you just prefer the outdoor look a great all rounder and also available in larger 40 litre size and in sirius blue features twin compartment design bio form padded harness system detachable webbing hip belt hydration compatible front pock