HIKA Sling Pack Tactical Pack Compact and Versatile Chest Pack,Shoulder Day Bag Material: 600D high pressure nylon fabric and ribbon Featurs PALS webbings all over the bag to hang different equipments, Large water bottle pocket Fully padded back and adjustable shoulder strap which can ensure the perspiration performance Chest sliding adjustment system can quickly adjust to their comfortable state,so that more comfortable Backpack. MOLLE external expansion system designed to be used in combination with other equipment you can load accessories you need