With 16 l of room for cargo this high capacity pack is ideal for extra long runs fast packing and long days where yoursquore switching between different activities on the trail loading up for a multisport adventure unzip the back of the pack and it will expand to offer even more cargo space wersquove also updated the octane with more storage on the front of the pack so you can grab snacks maps and other gear without breaking your stride there are two stretch pockets on the front of the harn