Specifications: Material: Water resistant and wear resistant oxford fabric. Adjsutable strap length: min 31.5" to max 43.3". Color Options: Black / Grey / Red / Army Green / Blue / White. Size: 6.7"L x 3.2"W x 13.4"H. Tablet size: Fits up to 9.7" tablet. Net weight: 0.99lbs Excellent Features: Capacity: Enough sapce to hold college supplies, travel accessories, clothes, stationery, notebook. Anti-theft lock: Easy to set your own codes and keep your privacy. USB port: Convenient to charge your electronics devices and free your hands. Reflective Design: The line of the bag has a reflective effect,safe to walk at night. Back hidden pock: An anti-theft pocket on the back protects your valuables. Comfortable: Breathable and decompression carrying system,ventilation,shock absorption. Adjustable strap: The length of strap could be adjusted to your need. Card slot: Strap card slot can store your cards and keep them handy. Changeable Strap: Left or right shoulder carry style. Suitable occasions: A great companion for outdoor activities, office work, camping, short trips, vacation, international travel, hiking, biking, and overnight trip. Best gift for your husband / wife / lover / son / daughter / nephew/ friends / Biker, make them smile on birthday party. Functional use: Anti theft sling bag can be used as messenger bag / shoulder bags / crossbody bags / casual daypack / chest bag / travel bag / sling backpack/ work bag. Instructions for lock password reset: 1. The initial password is 000. 2. Use your finger to pull the right button of the lock to open. 3. Move your thumb to the right button, do not release it, then roll the number on the lock and release the button to complete password reset.