This beautiful light weight backpack has a 30 L capacity in the main chamber and 8 L capacity outside.  It also can carry a pad or tent on top of the backpack.  This is a 12.6 ounce backpack that is only for very experienced backpackers that have their equipment seriously dialed in.  This is Not a Begginers backpack.  Total carry weight is 20 pounds, the comfort weight is 15 pounds.  This is a very rare backpack and is no longer made.