Pack compatibility:
This option is compatible with all models expect the Superior Frameless pack.
 
This modification will add an additional half size lycra mesh pocket inside whatever front pocket you choose for your pack. The pocket is about 8" tall and sits flush with the front panel. It is great for items that you would like to keep easy access such as a water filter, water bladders, tents stakes, etc. 
 
This will add about .5oz to the overall pack weight.