One holder has a bpa free nalgene in it, with a few other small items in the pouch, and the other has a guyot/gsi combo, with my fire kit in the pouch, along with some other small items. It rides very well. the extra weight and width isnt noticed, because the pack is narrow to begin with. I had only one bottle holder for awhile on it, but it felt out of ballance weight wise. I added another, and it now rocks!! I keep my bivy shelter in a cordura stuff sack on the bottom, and my woobie in the main compartment. The top small pocket has my FAK, a israeli bandage, and an AMK heatsheet. The bottom one has glowsticks, my survival kit, and a dry box wit extra batteries. My zebralight headlamp and RA twisty flashlight are also in there....
The main compartment has the woobie and plenty of room for extra clothes, and the middle is empty, and will hold two MREs with ease. Its my food pocket.
I have an M2 waistpack also that holds my camera and gear. I put it on the waistbelt. I also have a cocoon pouch with paracord. Im still working out where that will go. For me, its super comfy, and I love the way its set up. Gonna be a great overnight pack. Keep in mind, thats what this ones sole function is, overnighters+. My dayhike bag is my Timbuk2.
In the rear zipper pouch for the hydration bladder, my 1911 fits perfectly, and I can reach it unzip, and draw it very easily, and it remains totally out of sight. With the padding on the back it doesnt even "print". If you didnt know the pack, it would be very hard to even find it if you didnt know what you were looking for. Thats handy for places I dont wanna wear my holster.
This is a great pack. Ive owned alot of them, and I think its hard to beat this one because they are so versitle and you an set them up to suit your needs very easily.