These deluxe lightweight padded cases are specially designed to integrate with smaller products you need to keep organized around the pack. They hook on to Eberlestock packs with the Padlock system, or can be slung onto a sternum strap. These are not ordinary accessory pouches. As you would expect from Eberlestock, these are high-quality, finely built cases designed to protect valuable equipment. The A1SP is sized to fit a range finder or small camera, where the A2SP is a binocular sized case and they're both lined with high-visibility light gray interior nylon.