AONIJIE Running Hydration Vest Backpack for Women and Men Lightweight Trail Running Backpack 5.5L Rose Red - B07QNQ9ZP5 ★Lightweight For Running: 5.5L race vest only, the backpack weight is 8.82oz/250g super light, reducing much of the load during the running.When it comes to running, the shorter you plan to spend on the trail, the lighter pack you'll need.Design for middle or long distance runni..