With space for a 2 liter hydration bladder, this pack is built for the ultra-lighter intent on covering significant ground. A full Aero-Mesh back panel and shoulder straps maximizes ventilation for this lightweight rig. Standard Sitka hip pocket system for quick access to the key pieces you need. A detachable rain fly deploys for questionable weather, or completely removes with a simple button hardware attachment. A large stretch-mesh outer pocket gives access to the items too big for your hip belt pockets. Features both an internal hydration system as well as additional side pockets for water bottles.