There are 2 compartments, inside the main compartment; there are 4 pouches with cinch straps and an open-top pouch, there's also a Micro-Velcro (velvety textured) strap inside on the right. Inside the front compartment, are pen and accessory elastic holders.
A rubberized patch has been sewn onto the back to reduce the effect of scuffing between your clothes and the bag; there are also 2 straps on the bottom half of the bag to carry extra equipment.