I'm looking for a simple bumper with either no back or a vented back. I swear every phone I use gets hot and it drives me batty. I've been looking at this one but it's really the only one I could find with no back.
https://www.shapeways.com/product/4ULTTKGA2/moto-g5-plus-bumper-low-profile?optionId=63269253
https://www.shapeways.com/product/4ULTTKGA2/moto-g5-plus-bumper-low-profile?optionId=63269253