CLOSE-PACKED AND VERSATILE BACKPACK WITH A CAPACITY OF DI 30 LT, EQUIPPED WITH FLEXIBLE BARS TO OPTIMIZE WEIGHT DISTRIBUTION, BACKSIDE IN A RETICULAR AND BRATHABLE MATERIAL, HIP AND SHOULDER BELTS IN BREATHABLE MATERIAL, ADJUSTABLE WAIST AND CHEST, LARGE MESH POCKETS ON SIDES WITH FIXING ELASTIC STRINGS, CENTRAL POCKET WITH ZIP, COMPARTMENT WITH TOP VENT, POCKET WITH VELCRO CLOSURE FOR WATER BOTTLE, REFLECTIVE PRINTING, WATERREPELLENT AND REMOVABLE BACKPACK COVER.