Rolling Square inCharge X Portable Keychain Charger Cable, 6-in-1 Multi Charging Cable with 100W Ultra-Fast Charging Power, Sapphire Blue, USB

This is awesome for something that size. There have been a couple of times where I've been somewhere with plugs off the ground and then it can be awkward to have a phone hanging from the cable, but when using this with a power bank, or with plugs at a sensible height this is perfect.

Compact 6-in-1. Brilliant design and exactly what I was looking for.