Ventilation and airy comfort plus nice load transfer the Koa packs combine a mesh, trampoline backpanel with a traditional lumbar pad to transfer loads effectively and comfortably. Above the lumbar zone, the framesheet is bowed away from the body and tensions the mesh backpanel to enhance breathability and coolness. With a clean design and Choices for carrying Additional gear, these ventilated packs balance carrying comfort with durability and weight savings.