I'm looking for a backpack recommendation for ultralight Camino travel.
Hi Barry,
All of the suggestions so far are good ones, which is no surprise given the breadth of experience and how many km have been logged by those sharing their ideas. I've read and heard great things about ULA and about Zpacks, but have never owned one.
I have tried a number of packs since 2015, including a couple of Osprey packs (which I think of as the standard bearer), an REI Trail 40, and a Gregory Z40. I liked all of them for various reasons but I didn't love the weight of any of them, and with the Trail 40 and Z40, I didn't like how they carried (this is, of course, a very subjective critique). I bought a Lowe Alpine, took it out for a few mile hike on one of our local trails, came home and put it back in the box to return, mostly because it was too heavy. It just didn't fit all that great either. And, yes, I was properly sized/fitted before making the purchase.
I carried the Gossamer Gear Gorilla 40 (32 oz) on the Chemin du Puy in April and May and absolutely loved it. It rained 10 of the days I was out and it stayed dry. I did have a pack cover which helps a great deal. The Gorilla is an ultralight pack and carries as comfortably as any pack I have owned. I have not tried Gossamer's Kumo 36 (21 oz) or Lonestar 30 (29.5 oz) so I can't give an honest evaluation of those. There is also 36L superlight pack that comes in at about a pound. I did just purchase a day pack from Gossamer (Vagabond) and have liked it for short hikes and biking. I wouldn't use it on a multi-day trip.
There are so many variables that it's tough to know what is going to fit and feel best for someone else. As for me, the Gorilla 40 is doing the trick... at least for now
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Good luck and Buen Camino!