✔ MATERIAL -- This one strap backpack for men is made of 600D nylon fabric, lightweight, water resistant, wear resistant and wear-resistant. ✔ SIZE -- Dimensions (LxWxH): 16 x 11 x 30cm / 6.3 "x 4.3" x 11.8 ", the small backpack with water bottle holder provides enough space for the daily essentials you need for short-trip, shopping and cycling. ✔ FEATURE -- ① Length of the shoulder strap is about 70 - 120 cm, left and right adjustable. ② SIDE MESH POCKET which you can hold your 550ml bottle or a pocket umbrella. ③ USB SIDE CHARGING PORT on the other side of the bag, very convenient for charging your mobile phone. ✔ MULTIPLE USAGE -- One-shoulder strap design, this single strap backpack for men can act as a single-shoulder bag, sling bag, chest bag or a crossbody bag, be free to use it according to your needs. ✔ Occasions -- The tactical cross body bag for men is suitable for outdoor sports, such as running, hiking, camping, climbing, cycling, short-term travel and daily use. NOTE: THIS ITEM IS NOT specifically INTENDED FOR USE BY CHILDREN 12 AND UNDER Specification: -  Material: Waterproof nylon fabric -  Dimensions: 16 x 11 x 30cm / 6.3 "x 4.3" x 11.8 ",  -  width of the strap: 6.5cm -  Weight: 320g -  Color: black / brown / camo black Features: -  Adjustable straps for your needs (expands from 70 to 120 cm) -  The front main compartment has a large magictape pad on which you can attach your favorite label. -  Sling backpack can be used as travel backpack, shoulder bag, breast pocket, etc. -  Suitable for running, hiking, camping, cycling, shopping, traveling, climbing, sports, tool bag and so on. -  Free to wear, on your left or right shoulder. Package content: -  1 x shoulder bag Note: 1. Please allow 0.5 "-1" size difference due to different measurement options. 2. There may be a small color difference due to the monitor, the camera or other factors, please refer to the physical item.