- Visible colors are more difficult, but not very hard. Esp with Euro brands that like loud colors .
- Many technical jackets are just as form fitting as a cycle jacket. Climbers, mountaineers, backpackers are looking for the same minimalist aesthetic.
- Re: packing -- I think you'd be surprised. Again, rock climbers, minimalist back packers etc are looking for tiny packed size and minimal weight. Just as much as any cyclist I've met.

Where cycling-specific jackets win out in in my experience is:
- Cut for cycling: longer back and arms. Keeps you from getting wet when bent over or stretched out.
- Reflective bits on the jacket
- Venting: Cycling jackets are more likely to have a back vent than technical jackets. But technical jackets are more likely to have pit zips so it may be a wash.
- Pockets: Having a rear pocket is limited to cycling only jackets in my experience. This is handy vs front pockets when on a bike. Other shells all assume you may be wearing a backpack so forgo rear pockets.

I have an Patagonia Alpine Houdini I often use for days when it isn't going to rain non-stop, but on/off/windy. Its a 2.5 layer waterproof/breathable, cut pretty long but slim. Weighs 7oz and packs into its own pocket. And like many patagonia products has arms cut long enough for an orangutan.

But if I know its going to rain a lot, I'll opt for Gore-Tex Pro shell w/ pit zips for fuller protection.