For some ridiculous reason I have been collecting daypacks like they are a substitute for a good ultralight pack in both capacity and cost. The one 45L pack I own is just not functional beyond being waterproof. And then at the bottom of the pricing scale there seem to be a number of shared manufacturers. The other thing I have determined is that the cost seems to be a product of it’s volume, prestige, materials and to some extent features. Some of which seems counter intuitive.
One material I would like to exploit is Tyvek, however, the only backpacks I have been able to find are DIY. And while I like the cost savings I do not own a sewing machine and by the time I would develop the skills to make a half decent pack I might as well have bought one. Anything with Cuben Fiber or Dyneema is going to be a premium. While it is lightweight it is less durable. Then there are the sil-nylon and other nylons. Many are fine, however, a recent experience saw a decorative coral rock pull individual fibers from the pack. I have a different daypack that I used for getting around town when travelling and the bottom is shredding. Waterproof packs are generally tough but heavy.
Needless to say that a hiking pack should be left to the hiking and not urban dutyIn the features department many people like gobs of features. From water bottle stretch pockets to large snack pockets, stretch outer pockets for wet gear like a moist tent. One pack has a bottom access zipper for instant access to a sleeping bag. The new “simplepack” has a large bottom stretch pocket for clothes, snacks or maybe trash. All is well and good, however, many hikers swear by 1L smartwater bottles, however, few packs can actually hold them. At least one hiker complains about putting the water bottle in the side pockets and the “balance” of the pack. Another hike, who I will call my hero, wants a pack to carry stuff and that’s it. No pockets.