Modifying Password -The initial password is 000. -Push unlock button to open the password lock. -Push and hold unlock button and do not release it, then turn the number on the gear you desire and release the switch to complete the password modification. 100% Polyester made Zipper closure Anti Theft Lock: Durable dual access zippers with anti theft combination lock design allows for easy access and increases safety which can also provide a private space for you. A hidden anti theft pocket on the back protects your valuable items from thieves. Durable Material: Made of high density water resistant and tear resistant Oxford fabric. Durable metal zippers close and open smoothly, ensure a secure and long lasting usage everyday. it has a main compartment for your clothes, books, lunchbox and other daily necessities. With several functional pockets, you can hold your small items perfectly, such as coins, cell phone, keys, pens, etc. Side pockets for quick access to your daily items. USB Port Design: With built in USB charger outside and built in charging cable inside, offering you a more convenient way to charge your phone while walking. Crossbody shoulder strap can be adjusted to the length you need. Comfortable Functional: Breathable sponge mesh design of the back and straps can relieve the stress of long carry on. A great companion for OUTDOOR and INDOOR activities and perfect for daily use anywhere, school, camping, hiking, vacation, travel, trekking, mountaineering, weekend getaway, cycling, overnight trip