The Aircontact Ultra is for all Thru hikers who want to challenge themselves on the supreme discipline of hiking and need lightweight and reliable equipment. Thanks to the Aircontact back system with reduced contact surface and spacer fabric (Air Spacer Mesh), the weight-optimised lightweight offers increased ventilation of the back. The additional adjustable back length thanks to a clip & loop solution and the optimised ergonomics of the hip fins ensure a perfect fit, comfortable to wear on long distances. Reduced to the essentials, the lightweight brings a very good weight comfort ratio to the scale and is really durable from lid to floor thanks to the robust ripstop material made of high-performance fibre. By removing the lid, you can save additional weight, but still close the backpack firmly thanks to the drawstring and press stud. Depending on the use and equipment, the backpack can be optimally modified thanks to the removable lid and removable compression straps. This allows a wide variety of attachments of objects.