I've been through a lot of packs over the years and still haven't found one I am totally happy with. I am currently using the Kifaru UL frame with a Kuiu 5200 Icon Pro bag. So far this has been my favorite setup and I only have a couple of little issues with it see below. I just ordered a new Exo Bro bag for my Kifaru frame which I think will work out really well. I am a pocket guys so I am excited to see it's a 4800 with additional pockets for organizing gear, I also like the new exosystem for attaching the top of the bag to the frame without having to pull load lifters loose. It should be here next week sometime so I should be able to get it all switched over this winter for shed and predator hunting.
I really wish Kifaru would build a decent bag, it seems like they are trying to do their own thing with all the different crap you can attach to each pack but by the time you get all the pockets on there the pack is heavy and has way to many places to get hung up on limbs, fill with needles or fall off. Some people like just throwing all their crap at the bottom of a bag and digging it out all the time. I personally like to have my stuff organized, I use my pack a lot and like to have a spot for everything. I just wish Kifaru would try to make some of each and ditch the mix and match crap on just a couple of decent bags. They have made some definite headway in the last couple years but they start to get a decent bag then sew 5lbs of webbing to the back, just add a pocket or two and call it good. Another major problem I have with Kifaru is they seem to use the same straps to tie the bags to the frame as they do to compress the bag, this means you can't access your stuff while your packing meat without loosening your load, not all of them but 90% are designed this way. I really wish they would come up with a decent bag because I love their frame.
I really considered going with an entire exo setup but I haven't tried one yet and with all the changes every year with the frame design I assume they are addressing issues. I know the material they use on the shoulder straps is the same as what Horn Hunter used and I couldn't stand having the webbed material on the shoulders because dry pine needles would get stuck in the little holes and they were a PITA to dig out so I was constantly having needles poke me in the back. With the Kifaru material that is a non-issue, I noticed that Exo switched materials on their hip belt, I really hope they follow suit on their shoulder straps as well.
Sitka Flash 20, great daypack, wore this pack for a couple of years,
pro's;
lightweight
great organization
comfortable
con's;
Small
cannot carry much weight
uncomfortable with much weight
not durable (sitka replaced it for me after the hip belt wore through)
Sitka Bivy 30, also a good daypack, very organized
Pro's;
Organized well
comes with rain cover
comes with sitting pad
Light weight
Breathes well and Comfortable for day hunts
Con's;
Cannot Carry a load well
Hip Belt is too thin
hard to clean
Expensive for just a day pack
Horn Hunter Full Curl System, used for a couple years, Hard to beat for a budget pack.
Pro's
Inexpensive for a frame pack
Hauls weight pretty well
Cool Design with sewn-on batwings
Can be used as daypack easily
Hauls meat on the stand-alone frame so no bloody bag
Con's
Bulky when additional packs are added
Heavy and Large when fully loaded
Isn't as comfortable under really heavy loads as Higher End packs
Small Hip Pockets that are fixed in position.
Kifaru Timberline 2 (not duplex)
Pro's
Comfortable
Decent pocket layout
Decent Price if found used
Stuffs down for a daypack nicely
Hauls a load comfortably
Con's
Have to carry meat inside of the main bag (big con for me and the reason I sold it)
Fixed layout design
Not as rigged as the newer style frames
Kifaru UL frame (with Grab it)
Pro's
Super comfortable
Very Adjustable
Hauls a heavy 100lb+ load very comfortably
Very customizable
Rigged and can be used stand-alone
It can be adapted to other bags easily
Works stand alone with hip pouches and Grab it for additional trips for quarters.
Con's
Durability? Had to send it in once for a belt repair
Not really any other cons and the belt has been great since repaired but it did have stitching come apart on it.
Kifaru Nomad Bag
Pro's
Allows use of other bags in between
Small and Light
Attaches to frame well
Con's
Horrible Design, cannot sandwich gear or meat without crushing everything in the bag.
Outer Pockets filled easily with debris since they were open-top, gear also got wet, pretty much useless
Had to empty entire side to get to gear near the bottom
I really don't have much good to say about the Original Nomad bag, I had high hopes after using the batwings on the HHFC system, but hated it from day one, they ended up discounting and redesigning them in short order.
Kuiu Icon Pro 5200 (Bag Only)
Pro's
Very organized
Folds down to daypack size easily
Lightweight
Well thought out design
Built-in weapon carrier
Lots of attachments on back
Fits Kifaru frame with very little modification
Con's
Original zipper design on the main pocket is dumb, you have to unzip from the bag from the bottom to top. I pulled and flipped the zippers so you can enter top first like a horseshoe. Make it really nice and functional, the two zippers meet at the very top center instead of on either bottom corner.
Too much material and cord around snow collar
Bag attaches to frame weird
The lid is huge and flops around when full or empty, the only time it's really usable is during times when your filling everything fully and need the extra space.
You lose access to a lot of the availible pockets when in daypack mode
Kuiu Icon Pro 1800 (Bag Only)
Pro's
Very organized
Folds down to daypack size easily
Lightweight
Well thought out design
Fits Kifaru frame with very little modification
Con's
Too Small even for me for shed hunting I just couldn't get enough in it