Depending on the type of ride: try the hiker's bag, the waist pack or also known as the lumbar bag.
The back pocket of the typical bike jersey, when filled with contents, resembles the lumbar bag.
There are different sizes of lumbar bags/waist packs. Whatever you need to pack your items.
Its a reasonable alternative, but for the fashion conscience, maybe not that much.
The pros: holds more stuff than a saddle bag; anti-theft because its on you, unless you get mugged; frees up your bike frame because you're wearing it; jersey pockets not primary space; on hot humid days, lumbar region doesn't feel the heat.
The cons: not fit for racing; access to energy bars, cell phone, keys become cumbersome; not fashionable.
This is something you at least may try out. You can always use the hiking bag for hiking anyways. REI has an assortment. Again, it depends on the type of ride for that day. For most recreational riders, its not about racing.
Last edited by Garfield Cat; 10-01-18 at 05:13 AM.