The team at Osprey has a new pack series; the Hydraulics Raptor series. They come in four different sizes and are marketed for mountain biking, adventure racing, fast hiking, and trail running. I have been waiting to get my hands on one of these packs.
So, now I have a Raptor 10 pack. I will be using it mostly for mountain biking and for day-hiking while working as a trail guide. I have the size S/M which has a storage capacity of 600 cu. in. /10 liters, and it houses a 3 liter hydration reservoir.
There are seven key storage areas to this pack. I m going to describe these going from the back to the front of the pack.