Large Capacity: 80L large capacity camping backpack, enough room for more than 5 days trips. Many pockets and webbing to store what you need for long outdoor adventures. Main storage bag with elastic drawstrings that can expand the pack. Special: Hiking bags have the zippered opening on the side to get to the inside middle of the bag. So you can access the middle of the bag from outside without having to lift the top and empty everything to get to the middle.