Yeah, Apple uses rubber instead of plastics to wrap their cables. And it appears to have two problems. The common one with rubbers that they deteriorate by mois

Yeah, Apple uses rubber instead of plastics to wrap their cables. And it appears to have two problems. The common one with rubbers that they deteriorate by moisture. And it seems like the thickness of the layer is about as thin as the rubber's consistency allows. Meaning if you chip it in any way, the whole cable wrapper will slowly start to unravel. I've now bought a couple of Nohon braided cables from Aliexpress and they seem to hold together nicely. But of course them being cheap Chinese cables they are finicky with iPhone 6+, but work fine with my 5s.