Description: Cycling Backpack: Outdoor Cycling Waterproof Breathable Backpack for Men and Women, Bicycle Riding Sports BackpackWater Resistant Material: Made from wear resistant nylon cloth that can withstand the elements, this backpack allows you to travel freely without fear of rain or wind.Spacious Design with Multiple Compartments: The main compartment of the backpack is designed with ample space. It also features multiple storage compartments for organized storage of various items.Water System Compatible: This backpack can accommodate a water bladder(Not Included), freeing up your hands and allowing you to hydrate quickly during any outdoor activity.Comfortable and Breathable Back Support System: The back of the backpack is made from breathable mesh cloth to prevent stuffiness during physical activity, ensuring comfort.Reflective Strips for Night: Designed with reflective strips for increased visibility during night time activities or running, enhancing safe.Headpiece Storage Mesh Included: Features a hidden headpiece net cover design that can securely hold your headpiece for convenient carrying. Specification: Material:Nylon Size Chart: 46cmx25cmx8cm/18.11inchx9.84inchx3.15inch Package Includes: 1Cycling Backpack Note: Please allow slightly errors 1-2cm differences due to manual measurement.