This vest-style backpack is perfect for long-distance trail running, commuting runs, and more. It's also great for long-distance running events like marathons. At first glance, it may seem like an ordinary backpack, but the Fluid's main feature is its vest-style shoulder harness, which provides peace of mind even on trail runs. The fit minimizes the movement of your gear, offering exceptional comfort! ■ Brand: Mountain Hardwear ■ Product Name: Fluid 16 ■ Capacity: 16L ■ Weight (approx.): 447g * There are some minor scratches and stains, but no significant dirt. Please purchase only if you understand that this is a used item. It will be folded and shipped in a compact size. #MountainHardwear #Backpack #Outdoor #TrailRunning