When it comes to choosing the best running backpack, the options are endless, depending on your need. If it’s an ultramarathon, you’ll want a lightweight, minimalist pack to carry gels, energy drinks, snacks and waterproofs. If you’re planning to add a run commute or two to your weekly mileage, you’ll want something more substantial in which to lug your laptop and change of clothes. Fit & Design: Zipper main compartment Side compression straps Inside sleeve for hydration pack Front zipper pocket with rain guard Reflective logo Padded mesh back panel Exterior stretch mesh pockets and small zipper pockets on hip belt 17.52 in H x 9.25 in W x 5.12 in D Weight: 1.08 lbs