Montbell Triple Pocket Pack. It has a capacity of 45 liters, expandable to 60 liters by opening the zippers on the sides of the pockets, making it a large-capacity pack. I purchased this item, which had been used three times. My elementary school child has used it twice. It's still usable, but there is a name written on the underside of the flap. Also, the Montbell logo on the front is peeling off. I will ship it as is. Please understand. For those who understand that this is a used item, please consider purchasing.