From the Amazon product page for this item:

• "[Large Storage Space & Pockets] Tzowla laptop bag measures 20 x 11.8 x 5.5 inch and has 2 compartments separately in the back, where one can hold a super thin 13, 14, 15 or a 15.6 inch laptop and the other for laptop accessories and daily necessities. In its front side, there is a compartment with pockets to hold your pad, journal, pens, phone, readers and durable side pockets are equipped on both sides to fit a water bottle or umbrella.
• [Functional USB & Headset Port] The charging bag is equipped with an USB interface which has an built in cable design, so that you can conveniently charge your electronic devices through your own power bank. Also, the headphone interface frees your hands when you are listening to music.
• [Anti-Theft Design] The durable metal zippers and the fixed password lock, provides protection to your valuables inside the locking backpack, so that you do not have to worry about any occurrences of theft when you are travelling.
• [Premium Multi Usage Backpack] The bag is made up of high quality polyester fabric material and has a practical luggage strap design, which is equipped with comfortable wide padded shoulder straps, along with a built in key ring design, making it perfect for men, women in their daily routine at business, travel.(This product is suitable for people over 15 years old.)
• [Water-Resistant & Protection from Scratches] The bag has a soft fluffy interior with a thick protective ridge around the zipper, along with the water-resistant outer material, which offers your belongings, 360 degree superior protection from scratches, knocks, bumps or accidental dropping."