The Lithium Add-on Shoulder harness pocket from Mammut is a lightweight and versatile pocket with a fleece lining. You can use this imaginative and practical addition to your backpacks to store your glasses, phone and everything you want to have immediately at hand. A headlamp or a larger knife is fine. Whether you choose a place on the shoulder strap, waist belt or climbing harness, you can always attach the pocket easily. The pocket is attached using two velcro straps or a loop with a buckle.