Most of my riding is recreational/training. Usually 1-2 hours, but could vary longer or, if I run out of time, shorter.
My decade-or-so-old aftermarket Camelbak bag expired recently, its zipper threatening to drop my wallet, keys, bike tools, etc on the road without warning.
Now, with the exception of a century a couple of years ago (which was a Big Deal for me), I almost never actually used the bladder; especially since the old one tasted awful and the new one didn't really fit the old bag. So I mostly used this bag to carry a tube, a basic bike tool, a pump, wallet, keys, phone (in a location it has GPS signal for Strava), and any sort of light jacket I either wanted to bring or to stop wearing mid-ride.
I went to look at "modern" hydration packs, and they either seem to be super-minimalist units which have no room whatsoever for anything other than a bladder, or giant monstrosities with elaborate systems to allow airflow under the pack (which is admittedly neat) designed to carry enough crap to spend all day in the woods with temperatures from freezing to roasting and back.
I figure I'll wind up with something like a Cambelbak M.U.L.E. or an Osprey Raptor or Viper or something, but I don't want to have to wear that for a two-hour road ride where all my hydration can be had from bottles, and everything but a jacket fits in jersey pockets and/or an under-seat pack.
Am I missing something? I must be; there's no way that carrying basic repair tools, water, energy bars, and a light jacket should require anything terribly complicated, but the jacket just seems to push us out of the realm of jersey pockets and underseat packs.
And before anybody says anything about what a dumb question this is, I'm sick and plead insanity by fevers, both cabin and regular...