Paladineer 8L Outdoor Cycling Backpack Running Backpack for Biking Running Riding Climbing Hiking Black Ultralightweight & Durable, Made of water resistant rip-stop nylon; Reinforced SBS zippers of high quality Ergonomically designed,your comfort is a priority Padded back provides support for a comfortable fit, Adjustable shoulder straps for a custom fit,Padded shoulder straps for a comfortable carry; Mesh airflow on back helps you to stay cool and to avoid the sweat odor; Quick-access pockets on the shoulder straps for you to store your smartphone; An invisible mesh pocket on the shoulder straps to hold your water bottles Dimensions: 8.27"x3.94"x15.75"(Note: The size is measured by hand. Please allow little deviation.) Promise to Customer: Every item is strictly tested by the quality control. Please assured to buy