reg alice pack with aluminum frame but add this makes it super comfortable. you are basically bringing the alice up to todays packs standards.http://www.specialforces.com/field-survival-gear/field-packs-gear/ruck-kidney-padThe Alice packs are older and have an aluminum frame. The newer style Army rucks are the Molle or Molle2 they are great packs but the frames are kind of weak. I myself never broke one but some guys did. What guys are doing now is taking the old Alice frame and putting the Molle pack and straps on it. So you end up with a hybrid that is an awesome frame pack. It has tons of room and a dedicated bottom portion of the sleep system it will hold your bag and tent easy. You can load over 100lbs in it. Pretty cheap too at surplus stores. I will try to take some pics if you want.