["Constructed out of durable 600D Polyester, Twill and Honeycomb Ripstop w/a water resistant coating", "Featuring padded air mesh on both the back and shoulder straps to keep you cool.", "Adjustable shoulder straps include D rings to attach extra gear and has a sliding sternum strap with a safety whistle", "Front zippered compartment, front bungee cord loops and two side mesh pockets for all your quick-access things. ", "Larger items can fit in either a secondary compartment that has a mesh pockets or the main compartment with elasticized pocket to partition belongings. ", "This pack is (H20) hydration compatible. Upgrade with the HF00 2L bladder."]