The strap of this running backpack designed with multi-compartments, providing you enough space to store phone, secure light, towels, sunscreen, water bottle and different kinds of items.Adopting adjustable straps design, so that you can make the backpack fit your body perfectly and keep the pack from moving to reduce the burdens of your shoulder.It is made of high quality nylon material. Running backpack is equipped with reflective strips, which can ensure your safety when night running.The length of this product is 37cm and width is 20cm. The volume of this product is 5L.This product is suitable for runner, sports, travel, camping, hiking, etc.Item Name: Running BackpackMaterial: NylonFeatures: Practical, High Elastic, Breathable Color: Black, Grey, Blue, Green, Dark Gray, OrangeSize Details: Size: 37cm x 20cm/14.57" x 7.87" (Approx.) Recommended Bust: 76cm-140cm/29.92"-55.12" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Running Backpack(Others Not Included)