Product: Running Backpack Capacity: 12L Introducing the 12L lightweight running backpack, a must-have for runners and cyclists! Designed to fit the body, it minimizes swaying, making long workouts comfortable. With an expandable net, you can also store shoes and helmets! Excellent breathability with cushion mesh, reflective panels for nighttime safety, and water-repellent & abrasion-resistant material for outstanding functionality!