This black sling bag backpack is made of scratchproof and water-repellent oxford fabric with a combination lock for anti-theft protection. It has a large capacity with multiple storage areas, including a USB charger port for convenient charging on the go. The minimalist design and durable material make it suitable for various occasions, including school, office, business, outdoor activities, and daily use. Features: 1. Anti Theft Lock: Durable dual-access zippers with anti-theft combination lock design allow for easy access and increase safety, Anti Theft Backpack with Lock protects your stuff from strangers. 2. Waterproof & Scratchproof: Scratchproof material prevents cuts and wears marks. Water-repellent and drop-resistant materials keep your stuff always dry. The sling bag is made of high-density water-resistant and tear-resistant oxford fabric. Durable metal zippers close and open smoothly, to ensure secure and long-lasting usage every day. 3. Multi Storage Area: Large capacity main bag, zipper pocket, inner patch pocket, back zip pocket, shoulder strap card pocket, side pocket, make USB Charging Sport Sling Anti-Theft Shoulder Bag easier and safer to store small items. Large capacity can meet your storage need. 4. USB Charger Port: The crossbody sling backpack comes with a USB charging port (power bank not included), for charging electronic devices via connecting your own power bank. You can charge your devices hands-free on the go anywhere and anytime during walking, gym, sport, hiking, cycling, travel, outdoor activities, and daily use 5. Multifunctional: Can be used as a messenger bag, shoulder bag/cross body backpack, casual day pack, sling bag, chest bag, travel bag, working or business bag, suitable for office, school, outdoor, business, and other occasions. Minimalist and simple design. Specification: Material: Oxford Cloth + Polyester Color: Black, Gray&Brown, Black&Brown Product Size: 32 x 16 x 6cm Product Weight: 430g Package Included: 1 x Anti Theft Sling Bag