Guys, I just wanted to throw a shout out to Exo. I just ordered a K4 2200 and it shipped out the next day to arrive before my hunt. After ordering it the night before, I called in the next morning to confirm my size selections and intended use. Jake was very helpful and I ordered a blaze orange lid to complete the system. Sad to say, the blaze orange lid did not ship with the back but a ranger green which matched my pack arrived instead. The blaze orange lid arrived two days later after I had left for my hunt, so now I have an additional lid. The pack fits and performs as well as I had expected and I do not see how any other pack could outperform this. I just did 10 miles/day for the last 5 days hunting in Western Colorado and this pack exceeded expectations. Buy it and don’t look back. The 2200 is a day pack and is good for rifle, tripod, mid, out, puffly, and rain layers. Maybe a toaks/MSR pocket rocket stove combo and first aid kit before you are maxed out. I got two hip pockets and couldn’t survive without them. This is the perfect day pack but don’t consider it if you are thinking of any type of shelter or sleeping system to pack out. Highly recommended for features, fit, and comfort.