· Main area expands from 5" to 10" to fit more gear
· 3 3/4" x 3 3/4" Velcro patch on the front
· 3/4" x 4 3/4" Velcro patch on the front
· Revers-able zippers to keep out dust and dirt (on B model only)
· 2 accessory pockets
· Water bottle mesh pocket
· 2 electronics pockets on shoulder straps
· Removable waist belt
· Daisy chain holds rain gear, etc.
· Holds up to 3.0 liter hydration bladder
· Water resistant