With this year’s winter hiking season drawing to a close, I’ve finally got my kilt dialed in for my winter mid-Atlantic hikes. Now I just need a better pack.
Primarily I’m running an older Osprey Exos 58, the model with the hip belt pockets. Volume wise, it fits everything I need for a long weekend with lows down to 20. It’s a good pack, but the perimeter frame is just not as comfortable as I would like. For colder seasons or long trips where I want more gear, I have a military surplus CFP-90. I LOVE this pack and the twin stay internal frame. But at over 5 pounds dry, it’s overkill for most trips. (I’ve carried 70+ with this pack and it didn’t flinch)
so I’m looking at a new pack for winter. Preferably in the 60-70L range. I would prefer another twin stay, but I can’t find many options.
I have a short list that I’m looking at, but open to suggestions:
Twin stay packs:
HMG 4400, at the top of the volume range, has good reviews, but I would almost rather have a pack made from Xpac as opposed to DCF
SWD Long Haul 50, the lower volume end, I might have to trim a little more to get things to fit. But the customization and reputation is very good.
Perimeter:
Seek Outside Flight, I’m really intrigued by SO’s designs and have been eying them due to their reputation for load hauling capability. I’ve been following a thread here and it seems pretty capable, but I’m at the smaller end of the hip belt range and I’m concerned it might be an issue. Xpac/spectra combination is a plus for me.
Twin stay sheet (hybrid)
ULA Catalyst, this is the most back and forth for me. Pros: good volume, twin stays, great reputation, some customization. Cons: fabric isn’t quite as water resistant, it’s the heaviest pack of the four.
I’m open to input from any of these, especially from someone who has found they like the twin stay style frame. I’m also interested in any alternatives in the same range, especially if I’m overlooking a twin stay pack. I am NOT looking for frameless, I already have a Zerk 40 for my 3-Season pack, this is specifically for winter where I’ll need the extra volume and weight capacity.
Thanks for any help and input.

