Nothing fancy, it works amazing during a ruck or run. I’ve had no issues with mine.
I love the look and the way it works it's just to short by about 1 to 2 inch
Hi Robert. Thank you for being a Fast Metal customer, we hope you are enjoying your sunglasses! Regarding the lanyard, we want to make sure you have the lanyard fully extended if it is coming up too short. Pull on the ends of the lanyard until the two 'FM' logo ovals are touching. If it is still too short, let us know at firstname.lastname@example.org, or calling 928-723-0006 Mon-Fri between 8AM-4PM MST. Thank you so much for your feedback and helping us improve!