✅【Small Size, Large Capacity, Light Weight】This messenger bag is lightweight, very durable and sturdy! It's small enough not to be like a backpack, but large enough to carry a lot of things. Only 11.8 x 8.7 x 3.9, 350g / 0.77lbs, small zipper pocket for mobile phone, power bank, wallet or outdoor/travel sundries, very suitable for daily use. ✅【USB Charging Port】This daily sling bag is equipped with a USB charging port, which is very convenient to charge your electronic devices by connecting your own mobile power bank (power bank), you can connect your mobile phone and charge it easily when you are outdoors and traveling, which is very convenient and fashionable, you can connect your mobile phone and use it anytime, anywhere. ✅【High-quality Material】The men's and women's shoulder bags are made of high-quality nylon, which is waterproof and stain-resistant, lightweight and easier to take care of. This backpack uses exquisite craftsmanship to show your extraordinary temperament. The lightweight messenger bag can be placed freely on your back/chest well, if this men's hiking bag is durable, just wipe it clean. ✅【Durable and Breathable Design】This shoulder bag is made of mesh material. It is very soft and breathable, so when you sweat a lot, there is a mesh on the back to dry quickly, no need to worry. Breathable back pad, comfortable to wear. ✅【Multiple Occasions】Women's and men's shoulder bags are perfect for multiple occasions. The sling backpack is suitable for hiking walking, cycling, biking, hunting, traveling, business gym, camping beach and daily use. Perfect as a sling shoulder bag, this black sling bag can be comfortably carried on the shoulder or across the chest to prevent theft and keep your hands free. If buyers encounter any product problems, looking forward to your message!!