This is hands down my favorite low profile case. Has that nice sandstone finish like one of the OnePlus models had. And it's far more durable than Spigen's thin fit. Buttons are exposed so no worries there. Headphone opening is accommodating to most sizes, but not larger plugs. USB-C is a good cutout too. It covers all four sides instead of leaving the top and bottom exposed, like on the thin fit.

https://www.amazon.com/gp/aw/d/B01AGOHZC0/ref=yo_ii_img?ie=UTF8&psc=1