features makes it a convenient bag for cycling, hiking, traveling for job & daily use. Feature: External USB (Universal Serial Bus) port & earphone hole for charging your phone & listen to music anytime & anywhere without opening the bag. Roomy main compartment can hold a 13inch laptop, an umbrella, magazines & so on, & front pockets for your little items such as bus card, tissue & other personal effects & side mesh pouch for your bottle. Adjustable & breathable strap for comfortable fit & carry. Oxford fabric, wear resistant, tear resistant, anti-static & not easily deformed. Stylish, practical & lightweight, designed for daily work, school, business, traveling, hiking & cycling.