I bought several different usb packs and most support fast charging. They are all on amazon where I got them. Spiegen https://www.amazon.com/gp/aw/d/B016R1S228/ref=yo_ii_img?ie=UTF8&psc=1 and then there is the stalion 5 pack but only the 3 long cables supported fast charge. https://www.amazon.com/gp/aw/d/B016AXFWBM/ref=yo_ii_img?ie=UTF8&psc=1 and then there is the reversible usb 3 pack https://www.amazon.com/gp/aw/d/B017SCMOWE/ref=yo_ii_img?ie=UTF8&psc=1 if your wanting reviews mine are on youtube of them. Hope this helps.
Got the thin fit case for $3 bones. Thanks OP!
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