My iPhone and iPad lightning cables get trashed. I carry them all the time — sometimes in my pockets, other times in one of my backpacks.
And I also need a battery pack that's not too big and heavy, because I have to carry that, too, in my jacket or pants pockets.
That's why I really like the Nomad Ultra Rugged Battery Cable and portable battery.
The cabling is made with "ballistic nylon" and "Kevlar core." I'm not sure what that is, exactly, but it's super durable.
The battery charges only one device once, but it's smaller and shaped better for a pocket than most chargers I've seen. Plus, the charger is actually built into the cable.
Here's all the gear I use and recommend.