Review on RuenTech Case Cover Compatible With Garmin Fenix 6X/6X Pro/Fenix 6X Sapphire Case Protector TPU Protective Case Frame For Fenix 6X GPS Watch (Pink/Blue/Purple/Black/Clear) by Devin Jirsa

It did a great job of protecting my Fenix 6X Pro and as you can see in the picture it has "war wounds" from damage when I got my watch struck objects while moving. my day (For the record, 6X is a BIG watch and so thick you'll come across it quite often). It fits well and is probably as thin as possible to keep its shape. I would recommend taking it off and cleaning underneath at least once a week or after it gets wet; This causes dirt and water to collect between the case and the watch, which can affect the case and finish of the watch.