@neist, great point, though with the 115L capacity of the Serac packbag, it’s definitely volumetrically huge! I don’t think I’d take it on a solo trip. I bought a Vargo Ti-Arc a while back, and for a UL pack, it was pretty phenomenal! The pack is advertised at being suitable for up to 30lbs, and I found that to be perfectly accurate. It was fantastic with up to that weight. But with 35lbs it stopped being so nice as the harness simply is not that padded nor is the frame all that beefy. However for a lighterweight load it’s a great option.
The cuben fiber version is under 2 pounds at 1lb 15oz. Note it lacks side pockets and shock cord on the back. The standard version that I tried weighs 2lb 6oz. An external frame pack does not need to be heavy, or designed for large loads. Personally I find them preferable from a simplicity and versatility standpoint. The ZPacks Arc Blast/Haul are interesting options too, not quite an external frame but appear to bring along some of the advantages in a hybrid approach.
How much does your Alite pack weigh? I don’t see a weight advertised. Also, just curious, what is the mechanism used to roll up and hold in place the loose ends of the webbing shown in this picture?































