The Mammut Lithium Add On Shoulder Harness Pocket is a lightweight and versatile fleece-lined pocket for quick access to your glasses, smartphone, or whatever you like to keep at the ready. With three sizes to choose from and easy attachment options for your shoulder strap, hip belt, or climbing harness, pick the pocket and the placement that best suits you. Mammut Lithium Add On Shoulder Harness Pocket Features Mount on backpack hip belt or shoulder strap Fleece-lined Water-repellent Medium:Depth - 2cm, Height - 15.5cm, Width - 9cm Large:Depth - 2cm, Height - 19.5cm, Width - 11.5cm Mammut Lithium Add On Shoulder Harness Pocket