Carbonate coated, abrasion and water-resistant 420D nylon main body fabric. Laser cut reflective MOLLE front panel for attaching accessories. Includes KLIM 3L bladder with removable hose. Compression molded EVA foam backpad with raised ergonomic relief and ventilation channels for excellent next-to-body comfort & massive airflow. Boomerang ergonomic harness shape design for pack stability and enhanced comfort in riding position. The Arsenal 15 Backpack, now in its second generation, is a medium capacity pack in our lineup of off-road, dual-sport and adventure riding bags. Load stability and ergonomics while riding were key build objectives, along with good venting for hot weather conditions – all leading to extended all day comfort and a better ride. As is KLIM tradition, we built the Arsenal 15 with durable materials and incorporated useful features like internal organizer pockets, external MOLLE webbing, radio/hydration routing webbing, new bounce-free & comfortable ergonomic shoulder straps, 3-liter hydration bladder and more.