Features - Runner-tested to ensure the compression fit stays snug on the most technical terrain -The 2 included HydraPak 500 ml SoftFlasks are held securely in their pockets by cordlock straps - Adjustable torso straps dial in the fit; shoulder compression cords snug down the load on the fly - Hook-and-loop side construction adjusts on the fly and stretches for easy movement - Breathable mesh back and straps help you stay cool - PLB (personal locator beacon)—compatible pocket at top of shoulder; zippered cell phone pocket at front chest - Zip back pocket can stow clothing or serve as a hydration sleeve (reservoir not included) - Stash extra clothing in the pass-through pocket between the pack body and zip back pocket - Internal mesh pockets with a key fob keep you organized - 2 removable bungees included for attaching trekking poles or other gear - Multiple lash points for strapping on extra gear