I bought some of these...Fenix Saphire 5x, rugged scratch resistant...I know. But I'm tough on gear.
https://www.amazon.com/gp/product/B01N0XWDW8/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
I thought about making some kind of home made "bumper" protector for it out of an old bicycle tube for when working in the yard, the garage or on cars.
Im more worried about the bezel. I saw some bezel protectors (invisible ones) and i'd buy one if i can find