The go-to trail vest for long miles, big vert, and full days in the mountains Push Summits When the miles stack up and the summits keep calling, the Flow 5 becomes your ride-or-die partner. With 5 liters of storage, it’s built for all-day mountain missions—carrying hydration, layers, fuel, and poles without slowing you down. The harness locks everything in place so your gear stays stable when the pace increases. Breathable monomesh keeps airflow high during long climbs, while the compression system keeps the load tight and balanced. More space. More miles. More summits Balanced Carry for Long Miles The Balance Harness™ keeps weight centered across the torso, stabilizing your load while allowing natural running movement. By preventing gear from shifting or bouncing, the harness helps maintain rhythm and efficiency during long climbs and extended descents. Combined with breathable monomesh and adjustable compression, the system keeps the vest secure and comfortable for full-day efforts in the mountains.